$ git clone -n https://src.fedoraproject.org/rpms/rocs.git /var/lib/mock/f40-build-2122065-50742/root/chroot_tmpdir/scmroot/rocs
Cloning into '/var/lib/mock/f40-build-2122065-50742/root/chroot_tmpdir/scmroot/rocs'...
$ git fetch origin a48c6bbee5b4be47c667eb963d15c98891e43534:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocs
 * [new ref]         a48c6bbee5b4be47c667eb963d15c98891e43534 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a48c6bb 23.08.2