$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-238239-82519/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-238239-82519/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 96b965fee9b241cb273e2d8dafa7e438ad6353b7:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         96b965fee9b241cb273e2d8dafa7e438ad6353b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96b965f import firefox-140.9.0-1.tl4.ap.1