$ git clone -n https://gitee.com/wenyuzifang/shaderc.git /var/lib/mock/dist-an23-build-472700-74118/root/chroot_tmpdir/scmroot/shaderc
Cloning into '/var/lib/mock/dist-an23-build-472700-74118/root/chroot_tmpdir/scmroot/shaderc'...
$ git fetch origin c8e3f2e1d7acc04b868645bbf9270037bc665d3e:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/shaderc
 * [new ref]         c8e3f2e1d7acc04b868645bbf9270037bc665d3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8e3f2e Update code from upstream