$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-123759-73241/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-123759-73241/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin af6f6d177c6d4b6bf7907d3095f2dc0eb4813ec2:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         af6f6d177c6d4b6bf7907d3095f2dc0eb4813ec2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af6f6d1 import firefox-128.6.0-1.tl4.ap.1