Vue version

3.2.47

Link to minimal reproduction

https://sfc.vuejs.org/#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

Steps to reproduce

click the 'add' button.

What is expected?

the string 'default' change to 'default-add.

What is actually happening?

show errors.

System Info

No response

Any additional comments?

I want to render the slot manually，but it seem to must use the h function。If not，it wont be reactive.

You should modify the binding value of the key. https://sfc.vuejs.org/#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

Ricardo is right shapeFlag is not a unique value, so it does not work as a key.

Ricardo is right shapeFlag is not a unique value, so it does not work as a key.

thx. At first,i just want to set a key to test, but then i forget to correct it, and only think its a bug with computed and slots. Sorry to interrupt.