$ git clone -n https://gitee.com/wenyuzifang/nginx.git /var/lib/mock/dist-an23-build-469885-74027/root/chroot_tmpdir/scmroot/nginx
Cloning into '/var/lib/mock/dist-an23-build-469885-74027/root/chroot_tmpdir/scmroot/nginx'...
$ git fetch origin e3bf05af5113d486e0d35bbe33b9192b06fa55b1:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/nginx
 * [new ref]         e3bf05af5113d486e0d35bbe33b9192b06fa55b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3bf05a Update code from upstream