$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-237664-82457/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-237664-82457/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 3f066ac234db2c0a61b08ca5fafa353f8fda1b82:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         3f066ac234db2c0a61b08ca5fafa353f8fda1b82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f066ac import firefox-140.9.1-1.tl3.ap.1