Open Radar

 
Summary:
In CoreData, when you setup a parent-child entity relationship — an abstract entity and an entity with a parent — then custom initializers on the *child* entity return an instance of the abstract, parent entity.

For example, suppose you have the following:

```
class Person: NSManagedObject { } 

class Employee: Person { } 
```

A custom initializer on Employee will incorrectly initialize and return a Person instance.

Steps to Reproduce:
1. Download the example project here: https://github.com/jessesquires/JSQCoreDataKit/tree/radar

2. Make sure you checkout the `radar` branch.

3. Run the unit tests for the ExampleApp target. Specifically, this test:
https://github.com/jessesquires/JSQCoreDataKit/blob/radar/Example/ExampleAppTests/ExampleAppTests.swift#L49-L62

4. Note the exception produced:
failed: caught "NSInvalidArgumentException", "-[ExampleModel.Person setSalary:]: unrecognized selector sent to instance"



Expected Results:
No exception is throw. A valid `Employee` instance is created, not an abstract `Person` instance.

Actual Results:
An exception is thrown:
failed: caught "NSInvalidArgumentException", "-[ExampleModel.Person setSalary:]: unrecognized selector sent to instance"

Because an abstract `Person` instance is initialized, not a (child) `Employee` instance.


Version:
Version 8.0 beta 4 (8S188o)

Notes:


Configuration:


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