pulling from ../a
searching for changes
warning: pulling from an unrelated repository!
adding changesets
adding manifests
adding file revisions
modified 1 files, added 1 changesets and 1 new revisions
(run 'hg update' to get a working copy)
changeset:   1:9a79c33a9db37480e40fbd2a65d62ebd2a3c441c
tag:         tip
user:        a
date:        Thu Jan  1 00:00:00 1970
summary:     a

changeset:   0:01f8062b2de51c0fa6428c5db1d1b3ea780189df
user:        b
date:        Thu Jan  1 00:00:00 1970
summary:     b