$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-123457-72818/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-123457-72818/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 50531fc72459c863ee493f92eed2abc1a115508b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         50531fc72459c863ee493f92eed2abc1a115508b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50531fc import firefox-128.6.0-1.tl3.ap.1