$ git clone -n https://gitee.com/opencloudos-stream/emerald-themes.git /var/lib/mock/dist-oc9-epol-build-75699-52310/root/chroot_tmpdir/scmroot/emerald-themes
Cloning into '/var/lib/mock/dist-oc9-epol-build-75699-52310/root/chroot_tmpdir/scmroot/emerald-themes'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/emerald-themes
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ed5295 package init