$ git clone -n https://src.fedoraproject.org/rpms/python-mpd2.git /var/lib/mock/f45-build-31600-654/root/chroot_tmpdir/scmroot/python-mpd2
Cloning into '/var/lib/mock/f45-build-31600-654/root/chroot_tmpdir/scmroot/python-mpd2'...
$ git fetch origin 630743976605d6716621a29983ef7d634cc55ef8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mpd2
 * [new ref]         630743976605d6716621a29983ef7d634cc55ef8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6307439 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild