$ git clone -n https://src.fedoraproject.org/rpms/ghc-url.git /var/lib/mock/f40-build-2055617-49119/root/chroot_tmpdir/scmroot/ghc-url
Cloning into '/var/lib/mock/f40-build-2055617-49119/root/chroot_tmpdir/scmroot/ghc-url'...
$ git fetch origin 4f345ab4837bd92aede2b37c1d833d9aa1c54654:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-url
 * [new ref]         4f345ab4837bd92aede2b37c1d833d9aa1c54654 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f345ab bump release