Depsgraph: don't lose the update tag on rebuild for op nodes with a name.

This fixes a missing update when clearing the Text On Curve
(follow_curve) option of a text object.

source/blender/depsgraph/intern/builder/deg_builder_nodes.h

@@ -244,6 +244,7 @@ protected:
 		ID *id_orig;
 		eDepsNode_Type component_type;
 		eDepsOperation_Code opcode;
+		const char *name;
 	};
 	vector<SavedEntryTag> saved_entry_tags_;