Fixed segfault of QReal editor after sequential creating diagram via start widget and modal dialog
Fixed segfault of QReal editor after sequential creating diagram via start widget and modal dialog

danilaml/qreal,ZiminGrigory/qreal,danilaml/qreal,qreal/qreal,Victor-Y-Fadeev/qreal,RomanBelkov/qreal,anastasia143/qreal,danilaml/qreal,Ashatta/qreal,ZiminGrigory/qreal,qreal/qreal,Ashatta/qreal,Ashatta/qreal,danilaml/qreal,ZiminGrigory/qreal,RomanBelkov/qreal,qreal/qreal,RomanBelkov/qreal,qreal/qreal,qreal/qreal,anastasia143/qreal,RomanBelkov/qreal,Victor-Y-Fadeev/qreal,Ashatta/qreal,Ashatta/qreal,Ashatta/qreal,RomanBelkov/qreal,ZiminGrigory/qreal,anastasia143/qreal,Victor-Y-Fadeev/qreal,RomanBelkov/qreal,danilaml/qreal,anastasia143/qreal,anastasia143/qreal,Ashatta/qreal,Ashatta/qreal,RomanBelkov/qreal,anastasia143/qreal,ZiminGrigory/qreal,Victor-Y-Fadeev/qreal,ZiminGrigory/qreal,Victor-Y-Fadeev/qreal,Ashatta/qreal,danilaml/qreal,danilaml/qreal,ZiminGrigory/qreal,qreal/qreal,qreal/qreal,ZiminGrigory/qreal,RomanBelkov/qreal,Victor-Y-Fadeev/qreal,danilaml/qreal,qreal/qreal,RomanBelkov/qreal,Victor-Y-Fadeev/qreal,qreal/qreal,Victor-Y-Fadeev/qreal,anastasia143/qreal,ZiminGrigory/qreal,danilaml/qreal,anastasia143/qreal,anastasia143/qreal