画布删除最后一张图更新版本图

src/components/Canvas/FlowCanvas/index.vue

@@ -33,6 +33,7 @@
 		dialogVisible.value = true
 	}
 	const close = async () => {
+		await flowCanvasRef.value?.putFlowJson()
 		dialogVisible.value = false
 		myEvent.emit('closeFlowCanvas')
 	}