$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc8-build-124711-74287/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-124711-74287/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin 2226ffea17d8ecf37d2c0fb571fd51a9d9e36110:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new ref]         2226ffea17d8ecf37d2c0fb571fd51a9d9e36110 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2226ffe import tigervnc-1.13.1-15.tl3