$ git clone -n https://gitee.com/opencloudos-stream/flang /var/lib/mock/dist-oc9-epol-build-67609-46335/root/chroot_tmpdir/scmroot/flang
Cloning into '/var/lib/mock/dist-oc9-epol-build-67609-46335/root/chroot_tmpdir/scmroot/flang'...
$ git fetch origin 639002315c139ede20015c43b7dfa4abb2cb12db:KOJI_FETCH_HEAD
fatal: remote error: upload-pack: not our ref 639002315c139ede20015c43b7dfa4abb2cb12db
$ git reset --hard 639002315c139ede20015c43b7dfa4abb2cb12db
fatal: Could not parse object '639002315c139ede20015c43b7dfa4abb2cb12db'.