Ensemble: Fix editing ensemble list.

src/Model/Ensembles/Ensemble.py

@@ -29,9 +29,8 @@ logger = logging.getLogger()
 class Ensemble(SQLSubModel):
     _sub_classes = []
 
-    def __init__(self, id: int = -1,
-                 name: str = "",
-                 function=-1, range=[], target_data=None,
+    def __init__(self, id: int = -1, name: str = "",
+                 function=None, range=[], target_data=None,
                  status=None, owner_scenario=-1):
         super(Ensemble, self).__init__(
             id=id, status=status,
@@ -157,9 +156,12 @@ class Ensemble(SQLSubModel):
 
         brange, length = self._encode_range()
 
-        fid = self._function._pamhyr_id
-        if self._function._data_type == "generic":
+        if self._function is None:
             fid = -1
+        else:
+            fid = self._function._pamhyr_id
+            if self._function._data_type == "generic":
+                fid = -1
 
         data_pid = -1
         if self._target_data is not None: