$ git clone -n https://src.fedoraproject.org/rpms/rocs.git /var/lib/mock/f40-build-2384021-60487/root/chroot_tmpdir/scmroot/rocs
Cloning into '/var/lib/mock/f40-build-2384021-60487/root/chroot_tmpdir/scmroot/rocs'...
$ git fetch origin 3eb8c694b091ee8e346645e6ef151edc4c0fa0f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocs
 * [new ref]         3eb8c694b091ee8e346645e6ef151edc4c0fa0f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3eb8c69 24.01.95