Fix for layer restoring with duplis, could be wrong sometimes

when there with multiple instances and recursion.

source/blender/blenkernel/intern/anim.c

@@ -1532,7 +1532,10 @@ void free_object_duplilist(ListBase *lb)
 {
 	DupliObject *dob;
 	
-	for(dob= lb->first; dob; dob= dob->next) {
+	/* loop in reverse order, if object is instanced multiple times
+	   the original layer may not really be original otherwise, proper
+	   solution is more complicated */
+	for(dob= lb->last; dob; dob= dob->prev) {
 		dob->ob->lay= dob->origlay;
 		copy_m4_m4(dob->ob->obmat, dob->omat);
 	}