$ git clone -n https://gitee.com/opencloudos-stream/mingw-orc.git /var/lib/mock/dist-oc9-epol-build-92928-59368/root/chroot_tmpdir/scmroot/mingw-orc
Cloning into '/var/lib/mock/dist-oc9-epol-build-92928-59368/root/chroot_tmpdir/scmroot/mingw-orc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mingw-orc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f69a7f5 package init