Here is my case:
1 - I have a ComboBox that holds some values.
2 - I manualy select the first value.
3 - I clear the selection with method cb.getSelectionModel().clearSelection().
4 - I select again the first value. (manualy or by code...it does the same)

Bug: the value is not shown, even though when I click on the combobox I see in that list that the item is selected.
The only solution for showing it is to select another one, then select this one again.
Conclusion, rendering is not triggered if same value is selected after using clearSelection.

I tried to fire different type of events on the combo box, but with no effect.

Thank you.