画布增加的新功能

src/component/Canvas/CanvasEditor/managers/ThumbnailManager.js

@@ -91,12 +91,12 @@ export class ThumbnailManager {
         // 重新创建遮罩对象
         clippingMaskFabricObject = await restoreFabricObject(layer?.clippingMask, this.canvas);
 
-        clippingMaskFabricObject.clipPath = null;
+        // clippingMaskFabricObject.clipPath = null;
         clippingMaskFabricObject.set({
           absolutePositioned: true,
         });
 
-        clippingMaskFabricObject.dirty = true;
+        // clippingMaskFabricObject.dirty = true;
         clippingMaskFabricObject.setCoords();
       }
 
@@ -128,8 +128,13 @@ export class ThumbnailManager {
     }
 
     const { layer } = findLayerRecursively(this.layers.value, layerId);
-    let layersToRasterize = [];
 
+	if (!layer) {
+      console.warn("⚠️ 无效的图层，无法收集对象");
+      return [];
+    }
+
+    let layersToRasterize = [];
     if (layer.children && layer.children.length > 0) {
       // 组图层：收集自身和所有子图层
       layersToRasterize = this._collectLayersToRasterize(layer);