clean up comments

src/slic3r/GUI/GUI_App.cpp

@@ -8906,9 +8906,9 @@ void GUI_App::load_current_presets(bool active_preset_combox/*= false*/, bool ch
         auto* nozzle_diameter = edited_printer_preset.config.option<ConfigOptionFloats>("nozzle_diameter");
         if (nozzle_diameter) {
             // Mixed-color slots are virtual filaments kept at the tail of the list, so they have no
-            // nozzle of their own. Sizing to the nozzle count alone truncates them away — and this
-            // runs right after a project is loaded, so it would silently drop the project's mixes
-            // and then let update_extruder_count() strip every painted facet above the new count.
+            // nozzle of their own. Sizing to the nozzle count alone would silently drop the mixes of
+            // a just-loaded project, and update_extruder_count() would then strip the facets painted
+            // with them.
             preset_bundle->set_num_filaments(nozzle_diameter->values.size() + preset_bundle->num_mixed_filaments());
         }
     }