$ git clone -n https://gitee.com/zhoujiajia111/ghostscript.git /var/lib/mock/dist-an23.2-build-430817-73034/root/chroot_tmpdir/scmroot/ghostscript
Cloning into '/var/lib/mock/dist-an23.2-build-430817-73034/root/chroot_tmpdir/scmroot/ghostscript'...
$ git fetch origin e779e9c55391bb3b99312ab16091dee0ec829261:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/ghostscript
 * [new ref]         e779e9c55391bb3b99312ab16091dee0ec829261 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e779e9c update ghostscript.spec.