Fix Clear Scenery refunding ghost tile elements (#10941)

distribution/changelog.txt

@@ -34,6 +34,7 @@
 - Fix: [#10822] Can place too many peep spawns.
 - Fix: [#10898] Banner text has an offset in tile inspector window.
 - Fix: [#10904] RCT1/LL-scenarios with red water won't open.
+- Fix: [#10941] The Clear Scenery tool gives refunds for ghost elements.
 - Improved: [#682] The staff patrol area is now drawn on the water, instead of on the surface under water.
 - Improved: [#10858] Added horizontal grid lines to finance charts.
 - Improved: [#10884] Added y-axes and labels to park window charts.

src/openrct2/actions/ClearAction.hpp

@@ -148,6 +148,9 @@ private:
                 return totalCost;
             do
             {
+                if (tileElement->IsGhost())
+                    continue;
+
                 auto type = tileElement->GetType();
                 switch (type)
                 {