Admin saves copied the raw context locale into RecordSaved.Locale, which
could be a whole Accept-Language header, while reorder reported a
normalised code. Saves, child writes and reorder now report the primary tag
of the request locale. The pact doc says what Locale is and that per-locale
work keys on RecordChange.Locale, since an admin save writes the row in the
default content locale.
- form extensions: placement across three plugins, required plugins' tabs
and fields, Hide with neighbours and whole tabs, spans, grouping only of
extended forms; every remaining boot error with plugin, controller and
offending name
- record events: the pure snapshot/diff (create, update, pointers, times as
instants, timestamps and key omitted, per-locale translations) and the
value helpers
- descriptors: MatchPattern edge cases, MatchPath ordering, types without
Content, duplicate Model/Controller across plugins
