$ git clone -n https://gitee.com/wenyuzifang/virglrenderer.git /var/lib/mock/dist-an23-build-446785-73363/root/chroot_tmpdir/scmroot/virglrenderer
Cloning into '/var/lib/mock/dist-an23-build-446785-73363/root/chroot_tmpdir/scmroot/virglrenderer'...
$ git fetch origin a74899ac9652a7514a07ae453c2cfa171dd7afe4:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/virglrenderer
 * [new ref]         a74899ac9652a7514a07ae453c2cfa171dd7afe4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a74899a Update code from upstream