[Bf-blender-cvs] [99ffd7b35d0] blender2.8: Depsgraph: Fix/workaround crash when toggling edit mode

[Sergey Sharybin]

Commit: 99ffd7b35d0ea74fd5079ebabb7ae5c6a10484a4
Author: Sergey Sharybin
Date:   Tue Nov 21 15:34:13 2017 +0100
Branches: blender2.8
https://developer.blender.org/rB99ffd7b35d0ea74fd5079ebabb7ae5c6a10484a4

Depsgraph: Fix/workaround crash when toggling edit mode

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

M	source/blender/depsgraph/intern/builder/deg_builder_relations.cc

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

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index ce16a986dff..e028a81d423 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -2086,6 +2086,17 @@ void DepsgraphRelationBuilder::build_copy_on_write_relations(IDDepsNode *id_node
 		 */
 	}
 	GHASH_FOREACH_END();
+	/* TODO(sergey): This solves crash for now, but causes too many
+	 * updates potentially.
+	 */
+	if (GS(id_orig->name) == ID_OB) {
+		Object *object = (Object *)id_orig;
+		ID *object_data_id = (ID *)object->data;
+		OperationKey data_copy_on_write_key(object_data_id,
+		                                    DEG_NODE_TYPE_COPY_ON_WRITE,
+		                                    DEG_OPCODE_COPY_ON_WRITE);
+		add_relation(data_copy_on_write_key, copy_on_write_key, "Eval Order");
+	}
 }
 
 }  // namespace DEG