$ git clone -n https://gitee.com/opencloudos-stream/subunit.git /var/lib/mock/dist-ocs23-base-build-287079-27919/root/chroot_tmpdir/scmroot/subunit
Cloning into '/var/lib/mock/dist-ocs23-base-build-287079-27919/root/chroot_tmpdir/scmroot/subunit'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/subunit
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dcf8184 Rebuilt for clarifying the packages requirement in BaseOS and AppStream