$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc /var/lib/mock/dist-oc8-build-74252-49789/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-74252-49789/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 fa716de import tigervnc-1.13.1-8.tl3