[Bf-blender-cvs] [151fc2fcd84] master: Fix T99171: Crash in mesh vertices positions RNA update function

[Hans Goudey]

Commit: 151fc2fcd8461a9a28a2e912148718d51e8efd37
Author: Hans Goudey
Date:   Mon Jun 27 08:01:54 2022 -0500
Branches: master
https://developer.blender.org/rB151fc2fcd8461a9a28a2e912148718d51e8efd37

Fix T99171: Crash in mesh vertices positions RNA update function

Solution found by Philipp Oeser (@lichtwerk), thanks.

===================================================================

M	source/blender/makesrna/intern/rna_mesh.c

===================================================================

diff --git a/source/blender/makesrna/intern/rna_mesh.c b/source/blender/makesrna/intern/rna_mesh.c
index 2cdcae53677..7e94a7b0146 100644
--- a/source/blender/makesrna/intern/rna_mesh.c
+++ b/source/blender/makesrna/intern/rna_mesh.c
@@ -297,7 +297,7 @@ static void rna_Mesh_update_facemask(Main *bmain, Scene *scene, PointerRNA *ptr)
 
 static void rna_Mesh_update_positions_tag(Main *bmain, Scene *scene, PointerRNA *ptr)
 {
-  Mesh *mesh = (Mesh *)ptr->data;
+  Mesh *mesh = rna_mesh(ptr);
   BKE_mesh_tag_coords_changed(mesh);
   rna_Mesh_update_data_legacy_deg_tag_all(bmain, scene, ptr);
 }