Components of NSDatePicker inside NSTableView cannot be selected

In my table view, each row contains a popup button and a date picker. When clicking on the popup button, it behaves as expected: the menu appears and I can change the selected item. But when clicking on the date components of date picker, the table view row is selected, as if I'm clicking on a non-interactive control. Only when clicking on the stepper (the up/down arrows on the right) does the first date component get selected, which then allows me to click on the other ones as well.

Can I change this behaviour so that clicking on the date picker behaves as if I'm directly interacting with it, instead of the table view?

It looks like the table view or row is intercepting the click. How have you set up the table and the fields? Have you used the right parts of the protocols?

Components of NSDatePicker inside NSTableView cannot be selected
 
 
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