Fix T87969: crash accesing FaceMaps / PaintMask data in editmode

Workaround for crash when accessing FaceMaps / PaintMask data in
editmode, just disallow access in editmode as is done with UVs.

Same fix as in {rB3e2619b3e72a}.

Maniphest Tasks: T87969

Differential Revision: https://developer.blender.org/D11146

1 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/makesrna/intern/rna_mesh.c b/source/blender/makesrna/intern/rna_mesh.c
index 03b3d92eea8..997999d1c1d 100644
--- a/source/blender/makesrna/intern/rna_mesh.c
+++ b/source/blender/makesrna/intern/rna_mesh.c
@@ -958,13 +958,13 @@ static void rna_MeshPaintMaskLayer_data_begin(CollectionPropertyIterator *iter,
 {
   Mesh *me = rna_mesh(ptr);
   CustomDataLayer *layer = (CustomDataLayer *)ptr->data;
-  rna_iterator_array_begin(iter, layer->data, sizeof(MFloatProperty), me->totvert, 0, NULL);
+  rna_iterator_array_begin(iter, layer->data, sizeof(MFloatProperty), (me->edit_mesh) ? 0 : me->totvert, 0, NULL);
 }
 
 static int rna_MeshPaintMaskLayer_data_length(PointerRNA *ptr)
 {
   Mesh *me = rna_mesh(ptr);
-  return me->totvert;
+  return (me->edit_mesh) ? 0 : me->totvert;
 }
 
 /* End paint mask */
@@ -987,13 +987,13 @@ static void rna_MeshFaceMapLayer_data_begin(CollectionPropertyIterator *iter, Po
 {
   Mesh *me = rna_mesh(ptr);
   CustomDataLayer *layer = (CustomDataLayer *)ptr->data;
-  rna_iterator_array_begin(iter, layer->data, sizeof(int), me->totpoly, 0, NULL);
+  rna_iterator_array_begin(iter, layer->data, sizeof(int), (me->edit_mesh) ? 0 : me->totpoly, 0, NULL);
 }
 
 static int rna_MeshFaceMapLayer_data_length(PointerRNA *ptr)
 {
   Mesh *me = rna_mesh(ptr);
-  return me->totpoly;
+  return (me->edit_mesh) ? 0 : me->totpoly;
 }
 
 static PointerRNA rna_Mesh_face_map_new(struct Mesh *me, ReportList *reports, const char *name)