#12 Should check is correct answer is selected in Simple Ques

[Orkin]

When save the course there should be a warning if correct answer isn't defined for simple question in Examination Designer.

[Volodya Shtenyovych]

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Implemented. In multicase mode empty selection could be correct answer so this feature appears only in SingleCase mode.

[Orkin]

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rev. 651 - fixed for "Single Case" only (radio buttons), but not for "Multiple Case" (Checkboxes)

[Volodya Shtenyovych]

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Так і написано в коменті внизу.
Це правильна логіка.
Для чекбоксів правильною відповідю може бути порожня множина (жоден чекбокс не є чекнутий)