$ git clone -n https://gitee.com/zhuhong_bo/tigervnc.git /var/lib/mock/dist-an7-els-build-423167-72790/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/dist-an7-els-build-423167-72790/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin f03523c1f31f9a4b46b60b65057988faa251bda4:KOJI_FETCH_HEAD
From https://gitee.com/zhuhong_bo/tigervnc
 * [new ref]         f03523c1f31f9a4b46b60b65057988faa251bda4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f03523c Fix build against latest xorg-x11-server