$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc8-build-38219-12339/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-38219-12339/root/chroot_tmpdir/scmroot/tigervnc'...
$ git reset --hard origin/oc8
HEAD is now at fe9bb17 import tigervnc-1.12.0-15.tl3