Version

3.2.19

Reproduction link

sfc.vuejs.org/

Steps to reproduce

Unless I define v-slot:default slots not working

What is expected?

I expect that default will work automaticly.

What is actually happening?

I get error Property "item" was accessed during render but is not defined on instance.

See link for reproduction. first is not working

First is not supposed to be working, because there is no item to render.

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