--- a/mercurial/hgweb/webutil.py
+++ b/mercurial/hgweb/webutil.py
@@ -88,6 +88,8 @@
         navbefore = [("(0)", self.hex(0))]
         navafter = []
         for rev in targets:
+            if rev not in self._revlog:
+                continue
             if pos < rev < limit:
                 navafter.append(("+%d" % f, self.hex(rev)))
             if 0 < rev < pos:

--- a/tests/test-obsolete.t
+++ b/tests/test-obsolete.t
@@ -679,16 +679,15 @@
   $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
-#check changelog view
-#
-#  $ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'shortlog/'
-#  200 Script output follows
+check changelog view
+
+  $ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'shortlog/'
+  200 Script output follows
 
 #check graph view
 #
 #  $ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'graph'
 #  200 Script output follows
-
 check filelog view
 
   $ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'log/'`hg id --debug --id`/'babar'