$ git clone -n https://gitee.com/ocs-upgrade/firefox.git /var/lib/mock/dist-ocs23-base-build-322076-34214/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-ocs23-base-build-322076-34214/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/firefox
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c82685b Upgrade to version 128.14.0