Merge remote-tracking branch 'upstream/main' into haryr/aug25-rebase

# Conflicts:
#	src/libslic3r/GCode/ToolOrdering.cpp
#	src/libslic3r/Print.cpp
#	src/libslic3r/PrintApply.cpp
#	src/libslic3r/PrintConfig.cpp
#	src/slic3r/GUI/Tab.cpp

src/libslic3r/GCode/GCodeProcessor.cpp

@@ -2549,6 +2549,7 @@ void GCodeProcessorResult::reset() {
     spiral_vase_mode = false;
     layer_filaments.clear();
     filament_change_sequence.clear();
+    used_mixed_filaments.clear();
     nozzle_change_sequence.clear();
     optimal_assignment.clear();
     filament_change_count_map.clear();