--- rat/lonuserstate.pm	2006/02/28 20:56:40	1.106
+++ rat/lonuserstate.pm	2006/03/03 22:32:49	1.107
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Construct and maintain state and binary representation of course for user
 #
-# $Id: lonuserstate.pm,v 1.106 2006/02/28 20:56:40 albertel Exp $
+# $Id: lonuserstate.pm,v 1.107 2006/03/03 22:32:49 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -368,7 +368,11 @@ sub traceroute {
 	} else {
 	    $hash{'conditions_'.$rid}=$sofar;
 	}
-	$newsofar='_'.$rid;
+
+	# if the expression is just the 0th condition keep it
+	# otherwise leave a pointer to this condition expression
+	$newsofar = ($sofar eq '0') ? $sofar : '_'.$rid;
+
 	if (defined($hash{'is_map_'.$rid})) {
 	    if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) {
 		$sofar=$newsofar=