1 files changed, 5 insertions, 0 deletions
diff --git a/source/blender/depsgraph/intern/node/deg_node_id.h b/source/blender/depsgraph/intern/node/deg_node_id.h
index 886c25b5a4e..6eea31ebff9 100644
--- a/source/blender/depsgraph/intern/node/deg_node_id.h
+++ b/source/blender/depsgraph/intern/node/deg_node_id.h
@@ -25,6 +25,7 @@
 
 #include "intern/node/deg_node.h"
 #include "BLI_sys_types.h"
+#include "DNA_ID.h"
 
 struct GHash;
 
@@ -73,6 +74,10 @@ struct IDNode : public Node {
   IDComponentsMask get_visible_components_mask() const;
 
   /* ID Block referenced. */
+  /* Type of the ID stored separately, so it's possible to perform check whether CoW is needed
+   * without de-referencing the id_cow (which is not safe when ID is NOT covered by CoW and has
+   * been deleted from the main database.) */
+  ID_Type id_type;
   ID *id_orig;
   ID *id_cow;