Component selection indicates all items are selected even that isn't true

Tried to test newest internal QT5.1 offline installer. By default installer doesn't have source packages checked but still main screen indicates that all items are selected; both QT 5.1.0 and Tools shows selection mark. But if you open QT5.1.0 item you can see that sources aren't selected. If you select sources and then remove selection then indication works OK.