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OrcaSlicer/tests/libslic3r
HanifKohandSoftFever 205de9ce63 Keep User Preset Values on Extruder Variants They Don't List (#16046)
* Keep User Preset Values on Extruder Variants They Don't List

A user preset stores the variant list its parent had when it was saved.
When the parent later gains variants, update_diff_values_to_child_config
matched variants by name only and left the new ones at the parent's
value, so the user's settings were silently replaced there, and a
re-save wrote the system values into the user's file.

An unmatched parent variant now takes the child's first variant of the
same extruder, the rule slicing already uses in get_config_index_base.
A child without a variant list covers the parent's first extruder. The
name match also no longer indexes the child's extruder ids when it has
none.

* Share One Variant Column Rule Between Slicing, User Presets and Projects

Three places chose which variant column a value comes from, each with
its own copy of "the same variant and owner, else the owner's first
column": get_config_index_base when slicing, the user preset merge in
update_diff_values_to_child_config, and normalize_filament_values_to_variants
for projects and the CLI.

find_variant_column now holds that rule and map_variant_columns applies
it to a variant list, so a change to how missing variants are filled
reaches all three. Each caller keeps its own copy step. There is no
behaviour change: G-code is identical before and after. The one
relaxation is that get_config_index_base no longer reads past a short
id list when its two lists differ in length, which its assert already
rules out.

* Rename variant column helpers to variant index

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Co-authored-by: SoftFever <softfeverever@gmail.com>
2026-10-02 20:13:06 +08:00
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