$ git clone -n https://src.fedoraproject.org/rpms/python-flask-basicauth.git /var/lib/mock/f41-build-side-1-2962492-35757/root/chroot_tmpdir/scmroot/python-flask-basicauth
Cloning into '/var/lib/mock/f41-build-side-1-2962492-35757/root/chroot_tmpdir/scmroot/python-flask-basicauth'...
$ git fetch origin 3bf3fccfff4bd92c3d27e4a8bfae3cd7f3c443e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flask-basicauth
 * [new ref]         3bf3fccfff4bd92c3d27e4a8bfae3cd7f3c443e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bf3fcc Retired: https://pagure.io/releng/issue/12278