$ git clone -n https://src.fedoraproject.org/rpms/python-launchpadlib.git /var/lib/mock/f41-build-side-1-2910972-34774/root/chroot_tmpdir/scmroot/python-launchpadlib
Cloning into '/var/lib/mock/f41-build-side-1-2910972-34774/root/chroot_tmpdir/scmroot/python-launchpadlib'...
$ git fetch origin e2a6d4f1904926251e35651b59e4f8da32231e19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-launchpadlib
 * [new ref]         e2a6d4f1904926251e35651b59e4f8da32231e19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2a6d4f Update to 2.0.0