Not being able to edit NSTextField on NSPopover even though Editable behavior is set

Question

I have an application, which open popover with NSTextField. The text field is not editable. Behavior for text field is set to Editable. I still can

Answer 1

Definitely a bug. That bug report is exactly what I was trying to do. Even down to creating the status item and overriding mousdown.

I can confirm that Balazs Toth's answer works. I just wonder if it might get in the way down the road.