calculate cardinality after setting function pointer in rtree scan

spatial/src/spatial/core/index/rtree/rtree_index_plan_scan.cpp

@@ -193,8 +193,8 @@ class RTreeIndexScanOptimizer : public OptimizerExtension {
 		}
 
 		// If there are no table filters pushed down into the get, we can just replace the get with the index scan
-		const auto cardinality = get.function.cardinality(context, bind_data.get());
 		get.function = RTreeIndexScanFunction::GetFunction();
+		const auto cardinality = get.function.cardinality(context, bind_data.get());
 		get.has_estimated_cardinality = cardinality->has_estimated_cardinality;
 		get.estimated_cardinality = cardinality->estimated_cardinality;
 		get.bind_data = std::move(bind_data);