Regression or feature: editable comboBox doesn't commit on focus lost

[fastegal at swingempire.de]

short description (for a complete description and a workaround see  
http://stackoverflow.com/q/32620739/203657):

edit the text in an editable comboBox, focus another control -  
expected: the edited text is committed (aka: combo's value changed),  
actual: combo's value unchanged

Worked as expected in u45 (and supposedly u51 which I don't have on my  
machine) - intentional change or regression?

Cheers
Jeanette