$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-233551-81883/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-233551-81883/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 87679b466c1a9eb705471b5860665df5de65279e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         87679b466c1a9eb705471b5860665df5de65279e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87679b4 import firefox-140.7.0-1.tl3.ap.1