$ git clone -n https://src.fedoraproject.org/rpms/rocs.git /var/lib/mock/f39-build-1698504-41183/root/chroot_tmpdir/scmroot/rocs
Cloning into '/var/lib/mock/f39-build-1698504-41183/root/chroot_tmpdir/scmroot/rocs'...
$ git fetch origin 53abff7624de33af61b38f31ba91c73660b63cdc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocs
 * [new ref]         53abff7624de33af61b38f31ba91c73660b63cdc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53abff7 23.08.3