fix: treat renamed printer presets as compatible aliases (#14504)

# Description

Fixes user filament presets that reference an old printer preset name in
`compatible_printers`, even when the current system printer preset
correctly declares that old name in `renamed_from`.

## Core Issue

`PresetCollection::find_preset()` was updated to resolve `renamed_from`,
but this specific failure does not go through `find_preset()`.

For root user filament presets with empty `inherits`, Orca infers
`compatible_printers` from the filament name suffix after `@`. For
example:

```json
"ELEGOO PLA Base @Elegoo Neptune 4 Pro (0.4 nozzle)"
```

loads with:

```json
"compatible_printers": ["Elegoo Neptune 4 Pro (0.4 nozzle)"]
```

The current system printer preset is named:

```text
Elegoo Neptune 4 Pro 0.4 nozzle
```

and has:

```json
"renamed_from": "Elegoo Neptune 4 Pro (0.4 nozzle)"
```

However, filament compatibility was doing a direct string comparison
against the active printer name. Since that compatibility path does not
call `find_preset()`, the `renamed_from` mapping was never considered.

## Fix

Teach printer compatibility checks to treat
`active_printer.preset.renamed_from` entries as aliases of the active
printer name.

This preserves existing user preset JSON and avoids rewriting
`compatible_printers`, while allowing old printer suffixes to remain
compatible with renamed system printer presets.

## Tests

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src/dev-utils/OrcaSlicer_profile_validator.cpp

@@ -96,6 +96,7 @@ int main(int argc, char* argv[])
     ("vendor,v", po::value<std::string>()->default_value(""), "Vendor name. Optional, all profiles present in the folder will be validated if not specified")
     ("generate_presets,g", po::value<bool>()->default_value(false), "Generate user presets for mock test")
     ("check_filament_subtypes,f", po::bool_switch()->default_value(false), "Also flag printers with duplicate (ambiguous) filament subtypes. Off unless this flag is present.")
+    ("check_preset_references,r", po::bool_switch()->default_value(false), "Also flag presets whose inherits/compatible_printers/compatible_prints reference a deleted or renamed preset. Off unless this flag is present.")
     ("log_level,l", po::value<int>()->default_value(2), "Log level. Optional, default is 2 (warning). Higher values produce more detailed logs.");
     // clang-format on
 
@@ -120,6 +121,7 @@ int main(int argc, char* argv[])
     int         log_level            = vm["log_level"].as<int>();
     bool        generate_user_preset = vm["generate_presets"].as<bool>();
     bool        check_filament_subtypes = vm["check_filament_subtypes"].as<bool>();
+    bool        check_preset_references = vm["check_preset_references"].as<bool>();
 
     //  check if path is valid, and return error if not
     if (!fs::exists(path) || !fs::is_directory(path)) {
@@ -166,7 +168,7 @@ int main(int argc, char* argv[])
         return 0;
     }
 
-    if (preset_bundle->has_errors(check_filament_subtypes)) {
+    if (preset_bundle->has_errors(check_filament_subtypes, check_preset_references)) {
         std::cout << "Validation failed" << std::endl;
         return 1;
     }

src/libslic3r/PresetBundle.cpp

@@ -532,6 +532,17 @@ PresetsConfigSubstitutions PresetBundle::load_presets(AppConfig &config, Forward
         load_user_presets(dir_user_presets, substitution_rule);
     }
 
+    // Rewrite renamed compatible_printers / compatible_prints references before selection. Skipped
+    // in validation mode so the profile validator (has_errors -> check_preset_references) sees the
+    // raw vendor-JSON references instead of the silently-repaired ones.
+    if (!validation_mode)
+        this->normalize_compatible_presets();
+    // Rewrite renamed compatible_printers / compatible_prints references before selection. Skipped
+    // in validation mode so the profile validator (has_errors -> check_preset_references) sees the
+    // raw vendor-JSON references instead of the silently-repaired ones.
+    if (!validation_mode)
+        this->normalize_compatible_presets();
+
     this->update_multi_material_filament_presets();
     this->update_compatible(PresetSelectCompatibleType::Never);
 
@@ -752,6 +763,8 @@ PresetsConfigSubstitutions PresetBundle::load_project_embedded_presets(std::vect
 
     //this->update_multi_material_filament_presets();
     //this->update_compatible(PresetSelectCompatibleType::Never);
+    // Rewrite renamed compatible references before the caller (Plater) selects the project presets.
+    this->normalize_compatible_presets();
     if (! errors_cummulative.empty())
         throw Slic3r::RuntimeError(errors_cummulative);
 
@@ -1122,6 +1135,9 @@ PresetsConfigSubstitutions PresetBundle::load_user_presets(AppConfig &
         this->printers.update_after_user_presets_loaded();
     }*/
 
+    // Rewrite renamed compatible references in synced user presets before compatibility is evaluated.
+    this->normalize_compatible_presets();
+
     this->update_multi_material_filament_presets();
     this->update_compatible(PresetSelectCompatibleType::Never);
     //this->load_selections(config, PresetPreferences());
@@ -1807,6 +1823,9 @@ PresetsConfigSubstitutions PresetBundle::update_subscribed_presets(
         BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << " failed to save bundle metadata to: " << metadata_save_path.string();
     }
 
+    // Rewrite renamed compatible references in synced user presets before compatibility is evaluated.
+    this->normalize_compatible_presets();
+
     this->update_multi_material_filament_presets();
     this->update_compatible(PresetSelectCompatibleType::Never);
 
@@ -5240,6 +5259,49 @@ void PresetBundle::update_multi_material_filament_presets(size_t to_delete_filam
     }
 }
 
+// Rewrite a preset-name-list field (compatible_printers / compatible_prints) so references to a
+// renamed system preset point at the current name. Sibling-collection analog of
+// Preset::normalize_inherits: target.find_preset(name, false) resolves "renamed_from" recursively
+// and returns nullptr for unknown names, so we rewrite only on a positive, changed match and leave
+// user/deleted names untouched.
+static void normalize_compatible_field(Preset &preset, const char *field_key, PresetCollection &target)
+{
+    auto *opt = preset.config.option<ConfigOptionStrings>(field_key);
+    if (opt == nullptr)
+        return;
+    for (std::string &name : opt->values) {
+        if (name.empty())
+            continue;
+        if (const Preset *resolved = target.find_preset(name, false); resolved != nullptr && resolved->name != name)
+            name = resolved->name;
+    }
+}
+
+// Resolve compatible_printers / compatible_prints references that point at a renamed system preset
+// to the current name, mirroring Preset::normalize_inherits for the "inherits" field. Because these
+// fields reference presets in sibling collections (printers / prints / sla_prints), the resolution
+// cannot happen inside a single collection's load_presets() and runs here, after update_system_maps()
+// has built every collection's rename map. Must be called before selection so the rewritten stored
+// preset is copied into the edited preset by select_preset (no spurious "modified" flag).
+void PresetBundle::normalize_compatible_presets()
+{
+    // compatible_printers references a printer preset; compatible_prints (filaments / SLA materials)
+    // references a process preset. System presets are normalized too: a vendor profile can itself
+    // reference a sibling preset by a name that was later renamed, and the rewrite is in-memory only
+    // (system presets are never persisted back to vendor JSON). (begin()/end() skip defaults.)
+    auto normalize = [this](PresetCollection &holders, PresetCollection *processes) {
+        for (Preset &p : holders) {
+            normalize_compatible_field(p, "compatible_printers", this->printers);
+            if (processes != nullptr)
+                normalize_compatible_field(p, "compatible_prints", *processes);
+        }
+    };
+    normalize(this->prints,        nullptr);
+    normalize(this->filaments,     &this->prints);
+    normalize(this->sla_prints,    nullptr);
+    normalize(this->sla_materials, &this->sla_prints);
+}
+
 void PresetBundle::update_compatible(PresetSelectCompatibleType select_other_print_if_incompatible, PresetSelectCompatibleType select_other_filament_if_incompatible)
 {
     const Preset					&printer_preset					    = this->printers.get_edited_preset();
@@ -5471,7 +5533,8 @@ void PresetBundle::set_default_suppressed(bool default_suppressed)
     printers.set_default_suppressed(default_suppressed);
 }
 
-bool PresetBundle::has_errors(bool check_duplicate_filament_subtypes) const
+bool PresetBundle::has_errors(bool check_duplicate_filament_subtypes, bool check_references) const
+bool PresetBundle::has_errors(bool check_duplicate_filament_subtypes, bool check_references) const
 {
     if (m_errors != 0 || printers.m_errors != 0 || filaments.m_errors != 0 || prints.m_errors != 0)
         return true;
@@ -5494,6 +5557,12 @@ bool PresetBundle::has_errors(bool check_duplicate_filament_subtypes) const
     if (check_duplicate_filament_subtypes && this->check_duplicate_filament_subtypes())
         has_errors = true;
 
+    if (check_references && this->check_preset_references())
+        has_errors = true;
+
+    if (check_references && this->check_preset_references())
+        has_errors = true;
+
     return has_errors;
 }
 
@@ -5524,6 +5593,68 @@ static std::string preset_file_uri(const std::string &file)
     return uri;
 }
 
+// Orca: validator-only. Flag any system preset whose inherits / compatible_printers /
+// compatible_prints references a name that no longer resolves. Uses find_preset (exact match, then
+// the renamed_from map - no fuzzy find_preset2, no alias resolution), so:
+//   nullptr           -> the referenced preset was deleted/renamed away (name is dangling),
+//   resolved != name  -> the reference uses an old name that renamed_from maps to a current one.
+// Both should be fixed at the source rather than relying on load-time normalization - which is why
+// normalize_compatible_presets() is skipped in validation mode (see load_presets), so this sees the
+// raw vendor-JSON references. Safe under a single-vendor run (-v) too: inherits / compatible_printers
+// / compatible_prints only name same-vendor or OrcaFilamentLibrary presets (both loaded), so a
+// reference that does not resolve is genuinely dangling rather than an unloaded cross-vendor preset.
+bool PresetBundle::check_preset_references() const
+{
+    bool found = false;
+
+    // Resolve one reference (an inherits parent or a compatible_* entry) against its target
+    // collection and log if it is dangling (unknown) or uses a renamed preset's old name.
+    auto report_ref = [&](const Preset &p, const std::string &name, const PresetCollection &target,
+                          const char *verb, const char *noun) {
+        const Preset *resolved = target.find_preset(name, false);
+        if (resolved == nullptr) {
+            found = true;
+            BOOST_LOG_TRIVIAL(error) << "Preset \"" << p.name << "\" " << verb << " unknown " << noun << " \"" << name << "\":\n"
+                                     << preset_file_uri(p.file);
+        } else if (resolved->name != name) {
+            found = true;
+            BOOST_LOG_TRIVIAL(error) << "Preset \"" << p.name << "\" " << verb << " renamed " << noun << " \"" << name
+                                     << "\" (now \"" << resolved->name << "\"):\n" << preset_file_uri(p.file);
+        }
+    };
+
+    auto check_list = [&](const Preset &p, const char *key, const PresetCollection &target) {
+        const auto *opt = p.config.option<ConfigOptionStrings>(key);
+        if (opt == nullptr)
+            return;
+        for (const std::string &name : opt->values)
+            if (!name.empty())
+                report_ref(p, name, target, "references", key);
+    };
+
+    auto check_collection = [&](const PresetCollection &holders, const PresetCollection *processes) {
+        for (const Preset &p : holders) {
+            if (!p.is_system)
+                continue;
+            if (const std::string &inh = p.inherits(); !inh.empty())
+                report_ref(p, inh, holders, "inherits", "parent");
+            check_list(p, "compatible_printers", this->printers);
+            if (processes != nullptr)
+                check_list(p, "compatible_prints", *processes);
+        }
+    };
+
+    // Printers carry no compatible_printers/compatible_prints (those name a printer, so a printer
+    // holding them makes no sense); check_list is a no-op for them, so only their inherits is checked.
+    check_collection(this->printers,      nullptr);
+    check_collection(this->prints,        nullptr);
+    check_collection(this->filaments,     &this->prints);
+    check_collection(this->sla_prints,    nullptr);
+    check_collection(this->sla_materials, &this->sla_prints);
+
+    return found;
+}
+
 // Orca: a filament is matched from the AMS by (filament_id + printer compatibility).
 // For any one printer, at most one instantiated filament preset with a given
 // filament_id may be compatible - otherwise the AMS match is ambiguous and the

src/libslic3r/PresetBundle.hpp

@@ -448,6 +448,11 @@ public:
     void                        update_compatible(PresetSelectCompatibleType select_other_print_if_incompatible, PresetSelectCompatibleType select_other_filament_if_incompatible);
     void                        update_compatible(PresetSelectCompatibleType select_other_if_incompatible) { this->update_compatible(select_other_if_incompatible, select_other_if_incompatible); }
 
+    // Rewrite compatible_printers / compatible_prints references that point at a renamed system
+    // preset to the current name, mirroring Preset::normalize_inherits for the "inherits" field.
+    // Call after loading presets and before selection; requires update_system_maps() to have run.
+    void                        normalize_compatible_presets();
+
     // Set the is_visible flag for printer vendors, printer models and printer variants
     // based on the user configuration.
     // If the "vendor" section is missing, enable all models and variants of the particular vendor.
@@ -480,8 +485,13 @@ public:
         return      { Preset::TYPE_PRINTER, Preset::TYPE_SLA_PRINT, Preset::TYPE_SLA_MATERIAL };
     }
 
-    // Orca: for validation only. The duplicate filament subtype check is opt-in for now
-    bool has_errors(bool check_duplicate_filament_subtypes = false) const;
+    // Orca: for validation only. The duplicate filament subtype and preset-reference checks are
+    // opt-in for now (enabled per-vendor by the profile-check CI as vendors are cleaned up).
+    bool has_errors(bool check_duplicate_filament_subtypes = false, bool check_preset_references = false) const;
+
+    // Orca: for validation only. Flag any system preset whose inherits / compatible_printers /
+    // compatible_prints references a deleted (unknown) or renamed (old) preset name.
+    bool check_preset_references() const;
 
 private:
     // Orca: validation only - flag any printer with two or more compatible