Groups - DITA 1.2 Spec: CD04, PDF (DITA1.2-spec.pdf) uploaded

In my view, the various descriptions of the lockmeta attribute are
confusing in DITA 1.2 Spec: CD04, PDF (DITA1.2-spec.pdf).

In Section 3.1.2.1.2 'Metadata in maps and topics' on pdf p38 it says:

quote
By default, metadata in the map supplements or overrides metadata that
is specified at the topic level, unless the
@lockmeta attribute of the