315         for node in heads:

   315         for node in heads:

   316             c = self.changectx(node)

   316             c = self.changectx(node)

   317             rev = c.rev()

   317             rev = c.rev()

   318             try:

   318             try:

   319                 fnode = c.filenode('.hgtags')

   319                 fnode = c.filenode('.hgtags')

   321                 continue

   321                 continue

   322             ret.append((rev, node, fnode))

   322             ret.append((rev, node, fnode))

   323             if fnode in last:

   323             if fnode in last:

   324                 ret[last[fnode]] = None

   324                 ret[last[fnode]] = None

   325             last[fnode] = len(ret) - 1

   325             last[fnode] = len(ret) - 1