setting default value for association from empty string to "no_arrow" since latter is the default value for it in gui
setting default value for association from empty string to "no_arrow" since latter is the default value for it in gui

qreal/qreal,Ashatta/qreal,anastasia143/qreal,Julia-Khramyshkina/qreal,anastasia143/qreal,dvvrd/qreal,anastasia143/qreal,tara-sova/qreal,DenisKogutich/qreal,dvvrd/qreal,danilaml/qreal,Ashatta/qreal,dvvrd/qreal,ZiminGrigory/qreal,danilaml/qreal,RomanBelkov/qreal,danilaml/qreal,DenisKogutich/qreal,Victor-Y-Fadeev/qreal,Victor-Y-Fadeev/qreal,tara-sova/qreal,ZiminGrigory/qreal,dvvrd/qreal,Julia-Khramyshkina/qreal,tara-sova/qreal,danilaml/qreal,dvvrd/qreal,ZiminGrigory/qreal,Julia-Khramyshkina/qreal,anastasia143/qreal,anastasia143/qreal,DenisKogutich/qreal,Victor-Y-Fadeev/qreal,ZiminGrigory/qreal,dvvrd/qreal,tara-sova/qreal,ZiminGrigory/qreal,Ashatta/qreal,Julia-Khramyshkina/qreal,ZiminGrigory/qreal,danilaml/qreal,Victor-Y-Fadeev/qreal,RomanBelkov/qreal,tara-sova/qreal,Julia-Khramyshkina/qreal,qreal/qreal,Julia-Khramyshkina/qreal,anastasia143/qreal,Ashatta/qreal,qreal/qreal,Ashatta/qreal,danilaml/qreal,tara-sova/qreal,RomanBelkov/qreal,anastasia143/qreal,DenisKogutich/qreal,dvvrd/qreal,tara-sova/qreal,RomanBelkov/qreal,ZiminGrigory/qreal,anastasia143/qreal,RomanBelkov/qreal,DenisKogutich/qreal,Victor-Y-Fadeev/qreal,tara-sova/qreal,Julia-Khramyshkina/qreal,RomanBelkov/qreal,danilaml/qreal,qreal/qreal,qreal/qreal,RomanBelkov/qreal,qreal/qreal,DenisKogutich/qreal,Victor-Y-Fadeev/qreal,anastasia143/qreal,ZiminGrigory/qreal,Victor-Y-Fadeev/qreal,Ashatta/qreal,Julia-Khramyshkina/qreal,Ashatta/qreal,danilaml/qreal,RomanBelkov/qreal,RomanBelkov/qreal,Ashatta/qreal,DenisKogutich/qreal,dvvrd/qreal,qreal/qreal,DenisKogutich/qreal,ZiminGrigory/qreal,Victor-Y-Fadeev/qreal,dvvrd/qreal,danilaml/qreal,Ashatta/qreal,tara-sova/qreal,qreal/qreal,qreal/qreal,DenisKogutich/qreal,Julia-Khramyshkina/qreal