$ git clone -n https://gitee.com/src-opencloudos-rpms/ghostscript.git /var/lib/mock/dist-oc9-build-137014-79485/root/chroot_tmpdir/scmroot/ghostscript
Cloning into '/var/lib/mock/dist-oc9-build-137014-79485/root/chroot_tmpdir/scmroot/ghostscript'...
$ git fetch origin b9dd3df09b11f9ecd20906ec5733b9b8f1b6a1c2:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ghostscript
 * [new ref]         b9dd3df09b11f9ecd20906ec5733b9b8f1b6a1c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9dd3df import ghostscript-10.02.1-10.tl4