$ git clone -n https://gitee.com/zhoujiajia111/ghostscript.git /var/lib/mock/dist-an23.3-build-430123-73043/root/chroot_tmpdir/scmroot/ghostscript
Cloning into '/var/lib/mock/dist-an23.3-build-430123-73043/root/chroot_tmpdir/scmroot/ghostscript'...
$ git fetch origin 640ac1598cc438bcb20ec3055150303fd56fe191:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/ghostscript
 * [new ref]         640ac1598cc438bcb20ec3055150303fd56fe191 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 640ac15 update ghostscript.spec.