Alt-drag of sub graph to copy breaks the original

[phazei]

Prerequisites

• I am running the latest version of ComfyUI
• I have custom nodes enabled

What happened?

LiteGraph

If you duplicate a sub-graph by alt+drag, the original one breaks, you can no longer change the value.

To do the testing I ran pnpm dev and loaded http://localhost:5173/

Steps to Reproduce

1. Create 2 utils/primitive Int node.
2. Connect the first one to the second one.
3. Make the first one a subgraph
4. Go in the subgraph and connect the input to the int node
5. Go to root, hold Alt then click and drag the subgraph
6. Notice, now the copied one is editable, but if you try to change the value of the original one, by using the arrow buttons or clicking the value and typing a number in the popup and clicking ok, it doesn't work. if you refresh or change workflows and back, it fixes itself. One time it crashed the page.

How is this affecting you?

Crashes ComfyUI completely

ComfyUI Frontend Version

1.46.0

Browser

Chrome/Chromium

Console Errors

Logs

Additional Context

No response

[coderabbitai]

⚠️ Possible Duplicate Issue(s)

• Alt + Drag a subgraph is corrupting the original subgraph #5716

🔗 Related PRs

#11806 - Add additional subgraph test fixtures and tests [merged]
#12051 - fix: prevent enter subgraph/toggle advanced when nodes were dragged [merged]
#12281 - Subgraph io fixes [merged]
#12356 - On subgraph conversion, always unpack group nodes [merged]

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[phazei]

A few other discoveries:

Same behavior if I ctrl+c ctrl+p the node.
Same behavior if I right click => clone

I also discovered that if I go into the original subgraph, disconnect the input from the int node, then reconnect it, every single time I click the canvas it logs in the console:

Link not found 15064

Then when leave the subgraph, when I move my mouse it logs the same thing whenever the mouse is moved, hundreds of times.