Files
test/source/blender/editors/render
Bastien Montagne 6578db57cd Fix T91691: Selecting "Remove unused slots" in Materials panel removes slots that are assigned to particle systems/hair.
`BKE_object_material_slot_used` would only check obdata usages, but
particle settings can also (weirdly enough) use objects' material slots.

So now, as its name suggests, `BKE_object_material_slot_used` does take
an object as parameter, and also checks for potential slot usage from
psys in the object.
2021-09-27 18:09:20 +02:00
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