Merge pull request #9622 from kekel87/master

Avoid mutating input in EsriJSON format
2019-07-15 14:35:58 -07:00
parent ff063caa4e a8e31dddee
commit dc3ab508d4
2 changed files with 19 additions and 2 deletions
--- a/src/ol/format/EsriJSON.js
+++ b/src/ol/format/EsriJSON.js
@@ -256,10 +256,10 @@ function readGeometry(object, opt_options) {
    const rings = convertRings(esriJSONPolygon.rings, layout);
    if (rings.length === 1) {
      type = GeometryType.POLYGON;
-      object['rings'] = rings[0];
+      object = Object.assign({}, object, {['rings']: rings[0]});
    } else {
      type = GeometryType.MULTI_POLYGON;
-      object['rings'] = rings;
+      object = Object.assign({}, object, {['rings']: rings});
    }
  }
  const geometryReader = GEOMETRY_READERS[type];