diff -r 2f479109a71d -r f85ee41c84bc lemon/vf2.h
--- a/lemon/vf2.h	Thu May 14 16:07:38 2015 +0200
+++ b/lemon/vf2.h	Thu May 14 17:13:44 2015 +0200
@@ -410,6 +410,8 @@
       _depth=0;
       setOrder();
       setRNew1tRInOut1t();
+      for(typename G1::NodeIt n(g1);n!=INVALID;++n)
+        m[n]=INVALID;
     }
 
     ///Returns the current mapping type