$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox /var/lib/mock/dist-oc8-build-21835-5591/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-build-21835-5591/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard origin/oc8
HEAD is now at ed88e22 import firefox-91.12.0-2.oc8.1