$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-240942-82780/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-240942-82780/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin f0a816468838abbae767a160056f677cd54fadd9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         f0a816468838abbae767a160056f677cd54fadd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0a8164 import firefox-140.11.0-1.tl4.ap.1