$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-242351-82970/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-242351-82970/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 1769d1a7ff949140ee96d9ff52dcfe805e32cba0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         1769d1a7ff949140ee96d9ff52dcfe805e32cba0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1769d1a import firefox-140.12.0-1.tl3.ap.1