$ git clone -n https://gitee.com/src-opencloudos-rpms/tigervnc.git /var/lib/mock/dist-oc8-build-168884-79823/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-oc8-build-168884-79823/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin 6a4a68d04c47a858f9c7989a78fb1b76bf86e8ea:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tigervnc
 * [new ref]         6a4a68d04c47a858f9c7989a78fb1b76bf86e8ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a4a68d import tigervnc-1.15.0-7.tl3