Bug in default implementation

For a grid with maxlevel=1 the first leaf was skipped

[[Imported from SVN: r1937]]

grid/common/leafiterator.hh

@@ -125,7 +125,7 @@ namespace Dune
       grid(g), maxlevel(maxl),
       lit(grid.template lbegin<0>(0)),
       lend(grid.template lend<0>(0)),
-      hit(lit->hbegin(maxlevel)),
+      hit(lit->hbegin(maxlevel)), // wird hier wirklich die Reihenfolge eingehalten ?
       hend(lit->hend(maxlevel))
     {
       if (end)
@@ -138,7 +138,9 @@ namespace Dune
       if (hit != hend)
       {
         // find first leaf
-        increment();
+        if (hit->level() != maxlevel && !hit->isLeaf())         // PB 25.04.05: Added this, otherwise grids with one level do not work!
+          increment();
+
         // assign
         static_cast<EntityPointerImp&>(*this) = hit.realIterator;
       }