$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-247782-83625/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-247782-83625/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 959b68de591048e995b9912003d73570b2dd5bd0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         959b68de591048e995b9912003d73570b2dd5bd0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 959b68d import firefox-140.14.0-1.tl3.ap.1