Merge pull request #1134 from EmJay276/bugfix_selectionmode

Fix selection mode after removal of the local context in OCCT 7.3.0.

Author: tpaviot

src/Display/OCCViewer.py

@@ -627,6 +627,7 @@ def Pan(self, dx, dy):
         self.View.Pan(dx, dy)
 
     def SetSelectionMode(self, mode=None):
+        self.Context.Deactivate()
         topo_level = next(modes)
         if mode is None:
             self.Context.Activate(AIS_Shape_SelectionMode(topo_level), True)