$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-212267-80724/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-212267-80724/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 85ee3a35412559c4248d910c01b052e1cea33e51:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         85ee3a35412559c4248d910c01b052e1cea33e51 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85ee3a3 import firefox-140.3.0-1.tl3.ap.1