Index: obj_hash.h
===================================================================
--- obj_hash.h	(revision 22248)
+++ obj_hash.h	(revision 22249)
@@ -74,7 +74,7 @@
 PCB_INLINE unsigned pcb_hash_angle(const pcb_host_trans_t *tr, pcb_angle_t ang)
 {
 	long l;
-	ang -= tr->rot;
+	ang += tr->rot;
 	ang *= 10000;
 	l = floor(ang);
 	return murmurhash(&l, sizeof(l));