Fixes geometry type filter (#924)

* Fixes geometry type filter

* Fix lint, add changelog

Author: HarelM

CHANGELOG.md

@@ -4,6 +4,7 @@
 - _...Add new stuff here..._
 
 ### 🐞 Bug fixes
+- Fix issue with `geomtry-type` filter ([#924](https://github.com/maplibre/maplibre-style-spec/pull/924))
 - _...Add new stuff here..._
 
 ## 22.0.0

src/feature_filter/feature_filter.test.ts

@@ -171,6 +171,30 @@ describe('filter', () => {
         expect(withinFilter.filter({zoom: 3}, featureInTile, canonical)).toBe(false);
     });
 
+    test('expression, geomtery-type point', () => {
+        const withinFilter = featureFilter(['==', ['geometry-type'], 'Point']);
+        expect(withinFilter.needGeometry).toBe(true);
+        const canonical = {z: 3, x: 3, y: 3} as ICanonicalTileID;
+        const featureInTile = {
+            type: 1,
+            geometry: [[{x: 0, y: 0}]],
+            properties: {}
+        } as Feature;
+        expect(withinFilter.filter({zoom: 3}, featureInTile, canonical)).toBe(true);
+    });
+
+    test('expression, geomtery-type multipoint', () => {
+        const withinFilter = featureFilter(['==', ['geometry-type'], 'MultiPoint']);
+        expect(withinFilter.needGeometry).toBe(true);
+        const canonical = {z: 3, x: 3, y: 3} as ICanonicalTileID;
+        const featureInTile = {
+            type: 1,
+            geometry: [[{x: 0, y: 0}], [{x: 1, y: 1}]],
+            properties: {}
+        } as Feature;
+        expect(withinFilter.filter({zoom: 3}, featureInTile, canonical)).toBe(true);
+    });
+
     legacyFilterTests(featureFilter);
 
 });

src/feature_filter/index.ts

@@ -103,7 +103,7 @@ function compare(a, b) {
 
 function geometryNeeded(filter) {
     if (!Array.isArray(filter)) return false;
-    if (filter[0] === 'within' || filter[0] === 'distance') return true;
+    if (filter[0] === 'within' || filter[0] === 'distance' || filter[0] === 'geometry-type') return true;
     for (let index = 1; index < filter.length; index++) {
         if (geometryNeeded(filter[index])) return true;
     }