ISIS-2112: inspecting whether the ObjectAdapterMemento is broken- persistent object creation with wicket ui failsgenerated object is expected to be persistent, but it remains transient;could also be related to a missing transaction context;- all around some fixes (I lost track)- some minor improvements with 'demo'Task-Url: https://issues.apache.org/jira/browse/ISIS-2112
ISIS-2001: caters for dependent defaults returning collection, also makes logic for recomputing default more sophisticated...... based on *which* previous parameter actually changed.
ISIS-2001: generalizes the wicket viewer to support "dependent defaults"Also, the Wicket viewer will automatically check that defaults are compatible with choices available for the argument (if any) and reset if required.
