$ git clone -n https://src.fedoraproject.org/rpms/cockpit-machines.git /var/lib/mock/f40-build-2209004-52150/root/chroot_tmpdir/scmroot/cockpit-machines
Cloning into '/var/lib/mock/f40-build-2209004-52150/root/chroot_tmpdir/scmroot/cockpit-machines'...
$ git fetch origin ffd0ee750e6b3781f52bb1d00e94da31301b6b71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cockpit-machines
 * [new ref]         ffd0ee750e6b3781f52bb1d00e94da31301b6b71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffd0ee7 New upstream release 304