$ git clone -n https://src.fedoraproject.org/rpms/kshutdown.git /var/lib/mock/f39-build-1540523-36475/root/chroot_tmpdir/scmroot/kshutdown
Cloning into '/var/lib/mock/f39-build-1540523-36475/root/chroot_tmpdir/scmroot/kshutdown'...
$ git fetch origin b547311c1941631bb587ad76b2de8bf1206b5d80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kshutdown
 * [new ref]         b547311c1941631bb587ad76b2de8bf1206b5d80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b547311 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild