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    Bug 
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    Resolution: Unresolved
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    P3: Somewhat important 
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    None
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    5.15.7, 6.5
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    None
I've got group of radiobuttons on a dialog and between them I've got a groupbox with another group of radiobutton. These inside a groupbox work as expected (C, D on attached screenshot) 
these on dialog not. I may click on A and it will uncheck like if it is a checkbox. All have "autoExclusive" set to true. When I remove C and D from the groupbox A and B are working as expected - I cannot uncheck them all.