Update src/Map/src/Cluster/Cluster.php

Author: smnandre

src/Map/src/Cluster/Cluster.php

@@ -27,9 +27,9 @@ final class Cluster implements \Countable, \IteratorAggregate
      */
     private array $points = [];
 
-    private float $sumLat;
-    private float $sumLng;
-    private int $count;
+    private float $sumLat = 0.0;
+    private float $sumLng = 0.0;
+    private int $count = 0;
 
     /**
      * Initializes the cluster with an initial point.