IC: Fix reach reference at loading in case of multiple reach.

src/Model/InitialConditions/InitialConditions.py

@@ -250,7 +250,7 @@ class InitialConditions(SQLSubModel):
         )
 
         if new._data is not None:
-            yield new
+            return new
 
     def _db_save(self, execute, data=None):
         ok = True