pulling from ../a
searching for changes
warning: pulling from an unrelated repository!
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg update' to get a working copy)
changeset:   1:9a79c33a9db3
tag:         tip
user:        a
date:        Thu Jan  1 00:00:00 1970 +0000
summary:     a

changeset:   0:01f8062b2de5
user:        b
date:        Thu Jan  1 00:00:00 1970 +0000
summary:     b