1 files changed, 3 insertions, 1 deletions
diff --git a/source/blender/blenkernel/intern/customdata.cc b/source/blender/blenkernel/intern/customdata.cc
index e1bc025efd2..5e3beab9b72 100644
--- a/source/blender/blenkernel/intern/customdata.cc
+++ b/source/blender/blenkernel/intern/customdata.cc
@@ -2209,7 +2209,9 @@ void CustomData_realloc(CustomData *data, int totelem)
       continue;
     }
     typeInfo = layerType_getInfo(layer->type);
-    layer->data = MEM_reallocN(layer->data, (size_t)totelem * typeInfo->size);
+    /* Use calloc to avoid the need to manually initialize new data in layers.
+     * Useful for types like #MDeformVert which contain a pointer. */
+    layer->data = MEM_recallocN(layer->data, (size_t)totelem * typeInfo->size);
   }
 }