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Fix T87055: Crash applying modifier on mesh with multires data

This commit is contained in:
Campbell Barton 2021-04-20 15:10:43 +10:00
parent 0566ebdebe
commit 72fec0f7c5
Notes: blender-bot 2023-02-14 08:08:54 +01:00 
Referenced by issue #87055, Applying a mirror modifier with bisect enabled on object with a multires modifier prevents saving file and crashes blender afterwards
Referenced by issue #77348, Blender LTS: Maintenance Task 2.83
1 changed files with 4 additions and 0 deletions
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4
source/blender/blenkernel/intern/mesh_convert.c
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@ -1634,6 +1634,10 @@ void BKE_mesh_nomain_to_mesh(Mesh *mesh_src,
if (totloop == mesh_dst->totloop) {
MDisps *mdisps = CustomData_get_layer(&mesh_dst->ldata, CD_MDISPS);
CustomData_add_layer(&tmp.ldata, CD_MDISPS, alloctype, mdisps, totloop);
if (alloctype == CD_ASSIGN) {
/* Assign NULL to prevent double-free. */
CustomData_set_layer(&mesh_dst->ldata, CD_MDISPS, NULL);
}
}
}