$ git clone -n https://src.fedoraproject.org/rpms/rocs.git /var/lib/mock/f40-build-2340105-59695/root/chroot_tmpdir/scmroot/rocs
Cloning into '/var/lib/mock/f40-build-2340105-59695/root/chroot_tmpdir/scmroot/rocs'...
$ git fetch origin c6e918856e535886ec643ab2dd1b689d6abfe873:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocs
 * [new ref]         c6e918856e535886ec643ab2dd1b689d6abfe873 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6e9188 replace LicenseRef-KDE-Accepted-* licenses