ceea1a4d99
GPv3 stores the vertex group inside `CurvesGeometry`. When the object level vertex group name is changed, we have to loop over the vertex group list of each drawing. If a matching name is found, copy the new name to the vertex group in `CurvesGeometry`. A separate function is created to handle this: `BKE_grease_pencil_vgroup_name_update`. Pull Request: https://projects.blender.org/blender/blender/pulls/129038