@bchoquet-heliopsis  My idea was to delegate updating of field values for `ezobjectrelation` and `ezobjectrelationlist` field types to new methods in ContentGateway. Ideally we would delegate this to FieldHandler and field value converter, but this really cuts through our design so it is not easily possible. Also it should not be needed to load external data here, relations are not handled as external storage.

Ping @andrerom @bdunogier, do you agree with this approach?

Note we will also need to update cached ContentHandler to clear cache for all Content when Content is removed. In the future we should change these field types not to store relations in field values and so avoid this problem.