$ git clone -n https://gitee.com/wenyuzifang/ghostscript.git /var/lib/mock/dist-an23-build-500021-74764/root/chroot_tmpdir/scmroot/ghostscript
Cloning into '/var/lib/mock/dist-an23-build-500021-74764/root/chroot_tmpdir/scmroot/ghostscript'...
$ git fetch origin 6f49fd85be5c641b18a3f55001aa3f7a2bd074f3:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/ghostscript
 * [new ref]         6f49fd85be5c641b18a3f55001aa3f7a2bd074f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f49fd8 Update code from upstream