infinitepush: add tests for `hg pull -r <rev>`
This patch adds test for `hg pull -r <rev>` when the infinitepush extension is
not present on the client side and the server by defaults pushes all the
incoming push to bundlestore.
As the tests show, if a the changeset was applied to the server, that can be
pulled, but if a changeset is in the bundlestore we cannot pull that yet. We
should support that.
Differential Revision: https://phab.mercurial-scm.org/D2998
$ hg init
$ echo 123 > a
$ hg add a
$ hg commit -m "first" a
$ mkdir sub
$ echo 321 > sub/b
$ hg add sub/b
$ hg commit -m "second" sub/b
$ cat sub/b
321
$ hg co 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ cat sub/b 2>/dev/null || echo "sub/b not present"
sub/b not present
$ test -d sub || echo "sub not present"
sub not present