$ git clone -n https://gitee.com/ocs-upgrade/tuna.git /var/lib/mock/dist-ocs23-base-build-318122-33462/root/chroot_tmpdir/scmroot/tuna
Cloning into '/var/lib/mock/dist-ocs23-base-build-318122-33462/root/chroot_tmpdir/scmroot/tuna'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/tuna
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ac2bbf Upgrade to version 0.19