$ git clone -n https://src.fedoraproject.org/rpms/ocp.git /var/lib/mock/f45-build-20895-574/root/chroot_tmpdir/scmroot/ocp
Cloning into '/var/lib/mock/f45-build-20895-574/root/chroot_tmpdir/scmroot/ocp'...
$ git fetch origin 1fd302475065cdcab0e9d15131dca18e9a72ed17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocp
 * [new ref]         1fd302475065cdcab0e9d15131dca18e9a72ed17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fd3024 new sources