cf64a5b622
or baking. This basically means you will only have access to bpy.data and bpy.context.scene, not current window, active object, etc, as those are not thread safe anyway and were likely to cause issues already. This fixes #30858, where the UI would lose buttons due to context getting corrupted when editing objects in pre/post render or using luxrender. The context access they did (indirectly) was only using the current scene or data so they still work.