fix: supercluster max zoom with fractional zooming (#1002)

Co-authored-by: Shannon Little <[email protected]>
Co-authored-by: Martin Schuhfuss <[email protected]>

Author: 3 people

src/algorithms/supercluster.ts

@@ -51,10 +51,12 @@ export class SuperClusterAlgorithm extends AbstractAlgorithm {
 
   public calculate(input: AlgorithmInput): AlgorithmOutput {
     let changed = false;
-    const zoom = input.map.getZoom();
+    let zoom = input.map.getZoom();
 
     assertNotNull(zoom);
 
+    zoom = Math.round(zoom);
+
     const state = { zoom: zoom };
 
     if (!deepEqual(input.markers, this.markers)) {