$ git clone -n https://gitee.com/opencloudos-stream/firebird.git /var/lib/mock/dist-oc9-epol-build-215410-80879/root/chroot_tmpdir/scmroot/firebird
Cloning into '/var/lib/mock/dist-oc9-epol-build-215410-80879/root/chroot_tmpdir/scmroot/firebird'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/firebird
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ededfe1 !4 Update to 4.0.6.3221 Merge pull request !4 from brucezhang/master