[bugfix] query for data flag/attribute isNew changed

QtPyLoT.py

@@ -146,6 +146,7 @@ class MainWindow(QMainWindow):
             self.data = Data(self, lastEvent)
         else:
             self.data = Data(self)
+            self.data._new = False
         self.autodata = Data(self)
 
         if settings.value("user/FullName", None) is None:

pylot/core/io/data.py

@@ -350,7 +350,7 @@ class Data(object):
             information on the event to the actual data
             :param event:
             """
-            if not self.isNew():
+            if self.isNew():
                 self.setEvtData(event)
             else:
                 # prevent overwriting original pick information