$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-137678-79583/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-137678-79583/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 71a2ca70fa7d19d7e8d5b8c0d95ce6a8b272bbc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         71a2ca70fa7d19d7e8d5b8c0d95ce6a8b272bbc8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71a2ca7 import firefox-128.10.1-1.tl4.ap.1