$ git clone -n https://src.fedoraproject.org/rpms/bout++.git /var/lib/mock/f41-build-859323-168684/root/chroot_tmpdir/scmroot/bout++
Cloning into '/var/lib/mock/f41-build-859323-168684/root/chroot_tmpdir/scmroot/bout++'...
$ git fetch origin 8aefda14a1dd1489e0c973289f1969eb6f61660f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bout++
 * [new ref]         8aefda14a1dd1489e0c973289f1969eb6f61660f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8aefda1 Update to 5.1.1