Dock system selection improvements and fixes (#14305)

* Make sure we don't trigger another select when a view in the project tree is selected.
* Fix for #14255 and related issues
* Make sure we can close and open a main window, keeping the layout when reopened.

ApplicationLibCode/UserInterface/RiuMainWindow.cpp

@@ -351,8 +351,13 @@ void RiuMainWindow::closeEvent( QCloseEvent* event )
             return;
         }
     }
-    saveWinGeoAndDockToolBarLayout();
-    QMainWindow::closeEvent( event );
+
+    if ( auto proj = RimProject::current() )
+    {
+        proj->mainWindowDockState = dockWidgetStateString();
+    }
+
+    RiuMainWindowBase::closeEvent( event );
 }
 
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