Crash when reloading workflow with removed links

Configure something like this:配置如下： ! [image] (https://user-images.githubusercontent.com/125205205/230327284-13bbac2c-0106-41f5-a4e8-99d24650f150.png)

Remove the checkpoint loader删除检查点加载程序 ! [image] (https://user-images.githubusercontent.com/125205205/230327352-1c25859c-ddca-46aa-aaf6-bfdd006f2e3c.png)

F5/refresh window F5/刷新窗口

Crash 崩溃
Error loading previous workflow TypeError: link_info is undefined
    fromNode http://127.0.0.1:8188/extensions/setget.js:56
    onConnectionsChange http://127.0.0.1:8188/extensions/setget.js:56
    configure http://127.0.0.1:8188/lib/litegraph.core.js:2478
    configure http://127.0.0.1:8188/lib/litegraph.core.js:2217
    loadGraphData http://127.0.0.1:8188/scripts/app.js:831
    setup http://127.0.0.1:8188/scripts/app.js:709
    async* http://127.0.0.1:8188/:11
Updating to validate link_info resolves the crash更新以验证link_info解决了崩溃问题 ! [image] (https://user-images.githubusercontent.com/125205205/230343199-000f9928-bd91-4e16-a69f-8c8c7232fa28.png)

! [微信截图_20240622102622] (https://github.com/diffus3/ComfyUI-extensions/assets/173087860/3af14690-25c3-47c1-93bd-a3ac34ad2865) 你知道这个文件该如何解决吗，困扰我很久，只能死马当活马医了

diffus3 / ComfyUI-extensions

Crash when reloading workflow with removed links #1