Before this patch, 'darcs annotate .' worked and 'darcs annotate --
repodir foo .' failed. After this patch, 'darcs annotate .' fails and
'darcs annotate --repodir foo .' works :-)
Could you perhaps write tests for these two use cases?
BTW if you use --subject '[patch187]' when submitting a new version it
will get attached to this item in the tracker instead of making a new
one.