画布填充颜色不能更改和撤回问题

src/component/Canvas/CanvasEditor/commands/FillGroupLayerBackgroundCommand.js

@@ -49,6 +49,7 @@ export class FillGroupLayerBackgroundCommand extends Command {
     );
     this.layer = layer;
     this.parent = parent;
+	console.log("==========",layer);
     if (!layer) return false;
 
 	if(!isUndo){