$ git clone -n https://src.fedoraproject.org/rpms/koko.git /var/lib/mock/f40-build-2087213-50154/root/chroot_tmpdir/scmroot/koko
Cloning into '/var/lib/mock/f40-build-2087213-50154/root/chroot_tmpdir/scmroot/koko'...
$ git fetch origin ffabcc4948056b87468e53c68e45dea965199860:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/koko
 * [new ref]         ffabcc4948056b87468e53c68e45dea965199860 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffabcc4 24.01.80