$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc9-build-252505-84201/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc9-build-252505-84201/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin 91dfd5404a877855ae9d1a7529b6b9c3003d1530:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new ref]         91dfd5404a877855ae9d1a7529b6b9c3003d1530 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91dfd54 import tigervnc-1.13.1-16.tl4