$ git clone -n https://gitee.com/src-opencloudos-rpms/gnome-session /var/lib/mock/dist-oc8-build-56917-15178/root/chroot_tmpdir/scmroot/gnome-session
Cloning into '/var/lib/mock/dist-oc8-build-56917-15178/root/chroot_tmpdir/scmroot/gnome-session'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gnome-session
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20119ae import gnome-session-3.28.1-20.tl3