Scenario: avoid marking loaded scenario data as modified, that created unwanted copies in database

src/Model/Tools/PamhyrDB.py

@@ -202,6 +202,8 @@ class SQLSubModel(PamhyrID):
         """
         if self._status is None:
             return
+        if self._status.is_loading():
+            return
 
         self._owner_scenario = self._status.scenario_id
         self._status.modified()
@@ -218,6 +220,8 @@ class SQLSubModel(PamhyrID):
         """
         if self._status is None:
             return
+        if self._status.is_loading():
+            return
 
         self._owner_scenario = self._status.scenario_id
         self._status.modified()