Remove generated equals method as it includes the back pointing relationships in the comparison, making it somewhat useless.
When adjusting for limit, don't re-establish the placeholders right away.
A few more generated files I missed.
Get rid of broken equals method. Allow option for re-assigning uuid in import. Protect against null ship in importing.
Add way to save all squads as a JSON object for persistence. Start encapsulating the data items of Universe.
Have the tests override the persisted set selection.
Put in a simple assertion to replace broken generated equals methods.