Merge branch 'renavigatorumbau' into sewerdamages

# Conflicts:
#	DaSaSo.Wpf/HostBuilders/AddViewModelsHostBuilderExtensions.cs

DaSaSo.ViewModel/SewerMainListViewModel.cs

@@ -81,5 +81,11 @@ namespace DaSaSo.ViewModel
             _actualProject.SetSewerObject(sewer,false);
             IsLoading = false;
         }
+
+        public override void Dispose()
+        {
+            _navigator.StateChanged -= () => OnPropertyChanged(nameof(CurrentSewerViewModel));
+            base.Dispose();
+        }
     }
 }