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Fix T86799: Boolean crashes duplicating object with "Fast" solver

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BMesh intersect could leave invalid items in the selection list,
causing a crash. The list is now cleared since boolean is such a
destructive operation, it's unlikely the selection order would be useful.

Thanks to @lukastoenne for finding the root cause.
This commit is contained in:
Campbell Barton 2021-04-30 00:51:14 +10:00
parent 5946352ae2
commit 315582f28c
1 changed files with 4 additions and 0 deletions
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4
source/blender/bmesh/tools/bmesh_intersect.c
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@ -1660,5 +1660,9 @@ bool BM_mesh_intersect(BMesh *bm,
BLI_memarena_free(s.mem_arena);
/* It's unlikely the selection history is useful at this point,
* if this is not called this array would need to be validated, see: T86799. */
BM_select_history_clear(bm);
return (has_edit_isect || has_edit_boolean);
}