$ git clone -n https://gitee.com/denisecheng/flang /var/lib/mock/dist-oc9-epol-build-73786-49078/root/chroot_tmpdir/scmroot/flang
Cloning into '/var/lib/mock/dist-oc9-epol-build-73786-49078/root/chroot_tmpdir/scmroot/flang'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/denisecheng/flang
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 540d33e Rebuild