Fix patient has no AddDate

src/forms/select/PatientInformation.h

@@ -48,6 +48,7 @@ public:
         this->Sex = other.Sex;
         this->Comment = other.Comment;
         this->AccessionNumber = other.AccessionNumber;
+        this->AddDate = other.AddDate;
     }
     QString ScheduledStartDate;
     PatientInformation* Copy()
@@ -60,6 +61,7 @@ public:
         n->Sex = this->Sex;
         n->Comment = this->Comment;
         n->AccessionNumber = this->AccessionNumber;
+        n->AddDate = this->AddDate;
         return n;
     }
 };