Additional fix for "Failed to activate window context" log messages

src/boe.main.cpp

@@ -322,6 +322,7 @@ static void handleUpdateWhileScrolling(volatile bool& doneScrolling, int refresh
 		sf::sleep(sf::milliseconds(10));
 		redraw_screen(refresh);
 	}
+	mainPtr.setActive(false);
 }
 
 // TODO: Pass the event object around instead of keeping a global one

src/scenedit/scen.main.cpp

@@ -556,6 +556,7 @@ static void handleUpdateWhileScrolling(volatile bool& doneScrolling) {
 		if(overall_mode < MODE_MAIN_SCREEN || overall_mode == MODE_EDIT_TYPES)
 			set_up_terrain_buttons(false);
 	}
+	mainPtr.setActive(false);
 }
 
 void Mouse_Pressed() {