Fixed minor bugs

lib/pixi/deepzoom/tile.js

@@ -151,7 +151,7 @@ export default class Tile extends PIXI.Sprite {
         }
         else {
             // No longer registered and not pending
-            if (count <= 0 && !Tile.isPending(url)) {
+            if (count <= 0 && !Tile.isPending(this.url)) {
                 let opts = { children: true, texture: true, baseTexture: true }
                 super.destroy(opts)
                 if (debug) console.log("Tile.destroy", registeredTiles.size, opts)
@@ -187,6 +187,16 @@ export default class Tile extends PIXI.Sprite {
         return null
     }
 
+    /**
+     * Texture received too late. We do not need it.
+     * @param {*} url 
+     * @param {*} texture 
+     */
+    static lateTexture(url, texture) {
+        let destroyBase = !deepZoomTileCache.has(url)
+        texture.destroy(destroyBase)
+    }
+
     static printInfos() {
         let references = new Map()
         let multiples = 0