correction of the matching pattern in fixup and validate return QValidator::Intermediate if input string is empty
correction of the matching pattern in fixup and validate
return QValidator::Intermediate if input string is empty

hrobeers/qxtweb-qt5,mmitkevich/libqxt,hrobeers/qxtweb-qt5,hrobeers/qxtweb-qt5,hrobeers/qxtweb-qt5,mmitkevich/libqxt,mmitkevich/libqxt,hrobeers/qxtweb-qt5,mmitkevich/libqxt