Philipp Oeser
c4f9bfcf5e
The 'collection' property is flagged PROP_ID_REFCOUNT, so the modifiers foreachIDLink functions should walk with IDWALK_CB_USER (instead of IDWALK_CB_NOP). Otherwise the modifier wont be included as a user for the collection (e.g. on file read); removing the collection from the modifier will decrement usercount though (which in worst case scenario makes the collection orphan and will result in data loss) Maniphest Tasks: T89765 Differential Revision: https://developer.blender.org/D11877