$ git clone -n https://src.fedoraproject.org/rpms/python-minimock.git /var/lib/mock/f41-build-1140117-20936/root/chroot_tmpdir/scmroot/python-minimock
Cloning into '/var/lib/mock/f41-build-1140117-20936/root/chroot_tmpdir/scmroot/python-minimock'...
$ git fetch origin ca426d992b40c4aef0dd927c8e5bd60246691eab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-minimock
 * [new ref]         ca426d992b40c4aef0dd927c8e5bd60246691eab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca426d9 Drop 2to3 dep