$ git clone -n https://src.fedoraproject.org/rpms/irqbalance.git /var/lib/mock/f39-build-1536390-36306/root/chroot_tmpdir/scmroot/irqbalance
Cloning into '/var/lib/mock/f39-build-1536390-36306/root/chroot_tmpdir/scmroot/irqbalance'...
$ git fetch origin a7e3a3fd3cc6e31ab9f9401fc3f1392e31db9e95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/irqbalance
 * [new ref]         a7e3a3fd3cc6e31ab9f9401fc3f1392e31db9e95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7e3a3f Merge #8 `Use SPDX licence`