$ git clone -n https://gitee.com/opencloudos-stream/flang.git /var/lib/mock/dist-oc9-epol-build-90169-58759/root/chroot_tmpdir/scmroot/flang
Cloning into '/var/lib/mock/dist-oc9-epol-build-90169-58759/root/chroot_tmpdir/scmroot/flang'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/flang
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f86167 !8 [IAC3H4]:Rebuild for clang in opencloudos-stream Merge pull request !8 from ocs-bot/master