FEM: python objects task panel, clear selection on task panel close

src/Mod/Fem/femguiobjects/_ViewProviderFemElementFluid1D.py

@@ -468,6 +468,7 @@ class _TaskPanelFemElementFluid1D:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry1D.py

@@ -267,6 +267,7 @@ class _TaskPanelFemElementGeometry1D:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry2D.py

@@ -225,6 +225,7 @@ class _TaskPanelFemElementGeometry2D:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemElementRotation1D.py

@@ -226,6 +226,7 @@ class _TaskPanelFemElementRotation1D:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py

@@ -699,6 +699,7 @@ class _TaskPanelFemMaterial:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemMeshGroup.py

@@ -280,6 +280,7 @@ class _TaskPanelFemMeshGroup:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []

src/Mod/Fem/femguiobjects/_ViewProviderFemMeshRegion.py

@@ -276,6 +276,7 @@ class _TaskPanelFemMeshRegion:
     def setback_listobj_visibility(self):
         '''set back Visibility of the list objects
         '''
+        FreeCADGui.Selection.clearSelection()
         for obj in self.obj_notvisible:
             obj.ViewObject.Visibility = False
         self.obj_notvisible = []