Commit: 257ba175fa7e324792ce5f32d5369bcd685b8f55
Author: Jacques Lucke
Date: Wed Feb 16 15:58:27 2022 +0100
Branches: blender-v3.1-release
https://developer.blender.org/rB257ba175fa7e324792ce5f32d5369bcd685b8f55
Fix: removing anonymous attributes before adding mesh to bmain
This was an issue when e.g. `bpy.data.meshes.new_from_object` was
used on an object that uses geometry nodes.
===================================================================
M source/blender/blenkernel/intern/mesh_convert.cc
===================================================================
diff --git a/source/blender/blenkernel/intern/mesh_convert.cc
b/source/blender/blenkernel/intern/mesh_convert.cc
index 87631348188..22e4c3bf13c 100644
--- a/source/blender/blenkernel/intern/mesh_convert.cc
+++ b/source/blender/blenkernel/intern/mesh_convert.cc
@@ -1236,6 +1236,9 @@ Mesh *BKE_mesh_new_from_object_to_bmain(Main *bmain,
BKE_mesh_nomain_to_mesh(mesh, mesh_in_bmain, nullptr, &CD_MASK_MESH, true);
+ /* Anonymous attributes shouldn't exist on original data. */
+ BKE_mesh_anonymous_attributes_remove(mesh_in_bmain);
+
/* User-count is required because so far mesh was in a limbo, where library
management does
* not perform any user management (i.e. copy of a mesh will not increase
users of materials). */
BKE_library_foreach_ID_link(
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