cc891aa699
It's possible that multiple custom data layers share the same underlying data. This data is only written once (per data-block) currently. However, when reading the data again, two separate `ImplicitSharingInfo` were constructed which referenced the same underlying memory. The fix is to reuse previously created `ImplicitSharingInfo` that manage the same data. Pull Request: https://projects.blender.org/blender/blender/pulls/118991