Using the combobox with keyboard yields unsuspected behaviour with tab

[if13b063]

Version 2.6: If you are using your keyboard to navigate the combobox in vaadin 8 you can use enter to select the requred Items, but if you then want to move to the next field using tab. Tab gets registert as a selction and the item you are on will get selected (if not selected) or deselected (if selected) which is a small issue but hard to fix behaviour from outside and not so nice for user experience.