Always use load extent with real world center

src/ol/layer/Graticule.js

@@ -437,8 +437,7 @@ class Graticule extends VectorLayer {
         features: new Collection(),
         overlaps: false,
         useSpatialIndex: false,
-        wrapX: options.wrapX,
-        loadWrapX: false
+        wrapX: options.wrapX
       })
     );
 

src/ol/renderer/canvas/VectorLayer.js

@@ -361,7 +361,7 @@ class CanvasVectorLayerRenderer extends CanvasLayerRenderer {
     const center = viewState.center.slice();
     const extent = buffer(frameStateExtent,
       vectorLayerRenderBuffer * resolution);
-    let loadExtent = extent.slice();
+    const loadExtent = extent.slice();
     const projectionExtent = viewState.projection.getExtent();
 
     if (vectorSource.getWrapX() && viewState.projection.canWrapX() &&
@@ -375,11 +375,10 @@ class CanvasVectorLayerRenderer extends CanvasLayerRenderer {
       const gutter = Math.max(getWidth(extent) / 2, worldWidth);
       extent[0] = projectionExtent[0] - gutter;
       extent[2] = projectionExtent[2] + gutter;
-      if (vectorSource.getLoadWrapX()) {
-        loadExtent = extent;
-      }
       const worldsAway = Math.floor((center[0] - projectionExtent[0]) / worldWidth);
       center[0] -= (worldsAway * worldWidth);
+      loadExtent[0] -= (worldsAway * worldWidth);
+      loadExtent[2] -= (worldsAway * worldWidth);
     }
 
     if (!this.dirty_ &&

src/ol/source/Vector.js

@@ -146,10 +146,6 @@ export class VectorSourceEvent extends Event {
  * @property {boolean} [wrapX=true] Wrap the world horizontally. For vector editing across the
  * -180° and 180° meridians to work properly, this should be set to `false`. The
  * resulting geometry coordinates will then exceed the world bounds.
- * @property {boolean} [loadWrapX=true] Call the loader with one world width either side
- * of the projection extent when the world is wrapped horizontally. This allows features
- * to be loaded in a single request, but may be inefficient. If `false` only the viewport
- * extent is used and the loader must determine the appropriate real world requests.
  */
 
 
@@ -190,12 +186,6 @@ class VectorSource extends Source {
      */
     this.format_ = options.format;
 
-    /**
-     * @private
-     * @type {boolean}
-     */
-    this.loadWrapX_ = options.loadWrapX === undefined ? true : options.loadWrapX;
-
     /**
      * @private
      * @type {boolean}
@@ -811,14 +801,6 @@ class VectorSource extends Source {
   }
 
 
-  /**
-   * @return {boolean} The loadWrapX option used to construct the source.
-   */
-  getLoadWrapX() {
-    return this.loadWrapX_;
-  }
-
-
   /**
    * @return {boolean} The source can have overlapping geometries.
    */