$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc9-build-237409-82401/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc9-build-237409-82401/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin 56d320a2432bbf082bfe17ee1fe77160d8775b5c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new ref]         56d320a2432bbf082bfe17ee1fe77160d8775b5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56d320a import tigervnc-1.13.1-12.tl4