Record implementing an interface incorrectly printed

Hello,
I'm trying to apply a refactor using Spoon and there seem to be an issue when a record implements an interface.

The following code:

```
public class RecordTest {

public record SimpleRecord(int a) implements Supplier {

@Override
public Object get() {
return null;
}
}
}
```

Gets printed incorrectly (the interface disappeared and the method is now in parent class):
```

public class RecordTest {

public record SimpleRecord(int a) {

}

@Override
public Object get() {
return null;
}
}
```

And when using Snipper (note the missing } at the end):

```
public class RecordTest {

public record SimpleRecord(int a) implements Supplier {

@Override
public Object get() {
return null;
}
}

```

Is this a known issue?
Records are fairly new so it's good to see Spoon starting to support them!