fix qrefresh'ing an empty patch This is not superefficient (the commit will have to walk the whole tree), but it works.

statwalk: don't put self.root in the files list That list is supposed to contain internal, normalized names ("/"-separated, relative to the repo root), not OS-native paths.

fix qclone to a remote repo This fixes issue467. -stable still needs something like revision 55578a8d7e84 - mq: allow push if -r is given explicitly. In the meantime, hg qpop -a; hg qclone . ssh://... is a workaround.