印花图层等禁止添加图层

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

@@ -1644,7 +1644,7 @@ export class CanvasManager {
 		fabricObjects: [],
 		children: children,
 		clippingMask: groupRect.toObject(),
-		isFixedClipMask: true,
+		isPrintTrimsGroup: true,
 		specialType: SpecialType.PRINT_TRIMS_G,
 	});
 	this.layers.value.splice(groupIndex, 0, groupLayer);

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

@@ -3271,7 +3271,7 @@ export class LayerManager {
    * @private
    */
   _setupGroupMaskMovementSync(activeSelection, layer) {
-    if (!activeSelection || !layer || !layer.clippingMask || layer.isFixedClipMask) {
+    if (!activeSelection || !layer || !layer.clippingMask || layer.isPrintTrimsGroup) {
       return;
     }