Fix: Properly invalidate mouse-over station coverage highlight (#8263)

src/airport_gui.cpp

@@ -485,6 +485,7 @@ public:
 				this->SetDirty();
 				if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
 				this->UpdateSelectSize();
+				SetViewportCatchmentStation(nullptr, true);
 				break;
 
 			case WID_AP_LAYOUT_DECREASE:

src/dock_gui.cpp

@@ -448,6 +448,7 @@ public:
 				this->LowerWidget(_settings_client.gui.station_show_coverage + BDSW_LT_OFF);
 				if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
 				this->SetDirty();
+				SetViewportCatchmentStation(nullptr, true);
 				break;
 		}
 	}

src/rail_gui.cpp

@@ -1319,6 +1319,7 @@ public:
 				this->SetWidgetLoweredState(WID_BRAS_HIGHLIGHT_ON, _settings_client.gui.station_show_coverage);
 				if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
 				this->SetDirty();
+				SetViewportCatchmentStation(nullptr, true);
 				break;
 
 			case WID_BRAS_NEWST_LIST: {

src/road_gui.cpp

@@ -1147,6 +1147,7 @@ struct BuildRoadStationWindow : public PickerWindowBase {
 				this->LowerWidget(_settings_client.gui.station_show_coverage + WID_BROS_LT_OFF);
 				if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
 				this->SetDirty();
+				SetViewportCatchmentStation(nullptr, true);
 				break;
 
 			default: