rafuck

Immutable entities via copyWithId setter

9

Immutable entities support (see [Issue-307](https://github.com/objectbox/objectbox-dart/issues/307)) ```dart @Entity() class TestEntityImmutable { @Id(useCopyWith: true) final int? id; final int payload; TestEntityImmutable copyWith({int? id, int? payload}) => TestEntityImmutable( id: id, payload: payload ??...