Ok I see. It does not work when you add the two collections in one go, does it? Didn't test that case. When you close the dialog in between, it works. And at least you get now a meaningful error message ;-)
Will fix this.
Or did you test another case?
Ok I see. It does not work when you add the two collections in one go, does it? Didn't test that case. When you close the dialog in between, it works. And at least you get now a meaningful error message ;-)
Will fix this.
Or did you test another case?