Fix T77359: Crash adding UV's in edit-mode with linked duplicates

This prevents UV layer mix up in
MeshBatchCache.cd_used/cd_needed/cd_used_over_time which depends on the
extraction method.

One object's mesh can be accessed with MR_EXTRACT_MESH, another object
that uses the same mesh can use MR_EXTRACT_BMESH based on
(Object.mode & OB_MODE_EDIT), this causes a problem as the edit-mesh
and the mesh aren't always in sync, the custom data layers wont
necessarily match up, causing T77359.

Reviewed by @jbakker, @brecht

Ref D8645

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/draw/intern/draw_cache_extract.h b/source/blender/draw/intern/draw_cache_extract.h
index 2653b3127ae..5f77dac98be 100644
--- a/source/blender/draw/intern/draw_cache_extract.h
+++ b/source/blender/draw/intern/draw_cache_extract.h
@@ -260,6 +260,7 @@ void mesh_buffer_cache_create_requested(struct TaskGraph *task_graph,
                                         Mesh *me,
                                         const bool is_editmode,
                                         const bool is_paint_mode,
+                                        const bool is_mode_active,
                                         const float obmat[4][4],
                                         const bool do_final,
                                         const bool do_uvedit,