Index: trunk/src_plugins/rbs_routing/seq.c
===================================================================
--- trunk/src_plugins/rbs_routing/seq.c	(revision 38871)
+++ trunk/src_plugins/rbs_routing/seq.c	(revision 38872)
@@ -242,9 +242,29 @@
 		return 0; /* do not redraw if there's no change */
 	}
 
-	TODO("step back if end:dir matches the previous");
+	if ((rbsq->used > 2) && (end == rbsq->path[rbsq->used-2].pt)) {
+		int res;
+		grbs_arc_t *arc;
 
+		rnd_trace("jajj ------------------------------!\n");
+		rbsq->consider.dir = RBS_ADIR_invalid;
+		
+		
+		*need_redraw_out = 1;
+		res = rbsr_seq_redraw(rbsq);
 
+		arc = gdl_first(&rbsq->tn->arcs);
+		if (arc != NULL) {
+			arc->RBSR_WIREFRAME_FLAG = 1;
+			if (arc->eline != NULL)
+				arc->eline->RBSR_WIREFRAME_FLAG = 1;
+		}
+
+		rbsq->consider_step_back = 1;
+		return res;
+	}
+	rbsq->consider_step_back = 0;
+
 	rbsq->consider.pt = end;
 	rbsq->consider.dir = dir;
 
@@ -256,6 +276,12 @@
 {
 	rbsr_seq_accept_t res = RBSR_SQA_CONTINUE;
 
+	if (rbsq->consider_step_back) {
+		rbsr_seq_step_back(rbsq);
+		rbsq->consider_step_back = 0;
+		return res;
+	}
+
 	if (rbsq->used >= RBSR_SEQ_MAX) {
 		rnd_message(RND_MSG_ERROR, "rbsr_seq_accept(): path too long\n");
 		return res;
Index: trunk/src_plugins/rbs_routing/seq.h
===================================================================
--- trunk/src_plugins/rbs_routing/seq.h	(revision 38871)
+++ trunk/src_plugins/rbs_routing/seq.h	(revision 38872)
@@ -26,6 +26,8 @@
 
 	rnd_coord_t rlast_x, rlast_y; /* last points realized in the last redraw */
 	grbs_snapshot_t *snap;
+
+	unsigned consider_step_back:1; /* accept() should step back one */
 } rbsr_seq_t;
 
 typedef enum rbsr_seq_accept_e {