$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc8-build-66463-16711/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-66463-16711/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin 8074ba3fed445050b21cf3106e90a5edec1addad:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new ref]         8074ba3fed445050b21cf3106e90a5edec1addad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8074ba3 import tigervnc-1.13.1-2.tl3.1