$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-73002-48467/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-73002-48467/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 12ffc7955920904fab813e41226607eb55c0e8d3:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         12ffc7955920904fab813e41226607eb55c0e8d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12ffc79 Add auto-patch changlog