Version

3.2.19

Reproduction link

codesandbox.io

Steps to reproduce

Having a component that both declares emits because it itself emits an event (see Mid component in sandbox) and that also expects to pass down onMyEvent down as $attr fallthrough to a Child does not work.

The emits option effectively makes the onMyEvent attribute disappear from $attrs, and the chain is broken.

What is expected?

emits property should not remove onX from $attrs

What is actually happening?

It gets removed and breaks attribute event inheritance