$ git clone -n https://src.fedoraproject.org/rpms/ongres-stringprep.git /var/lib/mock/f41-build-756344-13418/root/chroot_tmpdir/scmroot/ongres-stringprep
Cloning into '/var/lib/mock/f41-build-756344-13418/root/chroot_tmpdir/scmroot/ongres-stringprep'...
$ git fetch origin 51835e7988ef89749224865dca5f26f9fb14eab3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ongres-stringprep
 * [new ref]         51835e7988ef89749224865dca5f26f9fb14eab3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51835e7 Move velocity-2 dependencies to codegenerator