diff -r feb7974cf4ec -r 2025a571895e lemon/bits/path_dump.h
--- a/lemon/bits/path_dump.h	Tue Aug 28 13:58:54 2007 +0000
+++ b/lemon/bits/path_dump.h	Tue Aug 28 14:00:42 2007 +0000
@@ -54,7 +54,9 @@
       RevEdgeIt() {}
       RevEdgeIt(Invalid) : path(0), current(INVALID) {}
       RevEdgeIt(const PredMapPath& _path) 
-        : path(&_path), current(_path.target) {}
+        : path(&_path), current(_path.target) {
+        if (path->predMap[current] == INVALID) current = INVALID;
+      }
 
       operator const typename Graph::Edge() const {
         return path->predMap[current];
@@ -126,7 +128,10 @@
       RevEdgeIt() {}
       RevEdgeIt(Invalid) : path(0), current(INVALID) {}
       RevEdgeIt(const PredMatrixMapPath& _path) 
-        : path(&_path), current(_path.target) {}
+        : path(&_path), current(_path.target) {
+        if (path->predMatrixMap(path->source, current) == INVALID) 
+          current = INVALID;
+      }
 
       operator const typename Graph::Edge() const {
         return path->predMatrixMap(path->source, current);