$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc /var/lib/mock/dist-oc8-build-58139-15943/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-58139-15943/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8074ba3 import tigervnc-1.13.1-2.tl3.1