$ git clone -n https://src.fedoraproject.org/rpms/plasma-firewall.git /var/lib/mock/f39-build-1629287-39536/root/chroot_tmpdir/scmroot/plasma-firewall
Cloning into '/var/lib/mock/f39-build-1629287-39536/root/chroot_tmpdir/scmroot/plasma-firewall'...
$ git fetch origin 6ed5964730eac87927838658b9af987ac5e129dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-firewall
 * [new ref]         6ed5964730eac87927838658b9af987ac5e129dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ed5964 5.27.9