$ git clone -n https://gitee.com/src-opencloudos-rpms/rubygem-rspec.git /var/lib/mock/dist-oc9-build-64152-16463/root/chroot_tmpdir/scmroot/rubygem-rspec
Cloning into '/var/lib/mock/dist-oc9-build-64152-16463/root/chroot_tmpdir/scmroot/rubygem-rspec'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rubygem-rspec
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 073cd09 import rubygem-rspec-3.12.0-4.tl4