kebab-case dynamic props disappear

[jods4]

Version

3.0.0-alpha.12

Steps to reproduce

Sorry I couldn't reproduce the behavior of my app in a repro so I had to debug it myself to figure out what's going on.

What I'm seeing is that sometimes Vue totally removes from props a kebab-case prop, although exactly the same template in camelCase works perfectly.

I traced it down to this code block:
https://github.com/vuejs/vue-next/blob/cb504c287f9517a055236cadfafcc64895c8825c/packages/runtime-core/src/componentProps.ts#L180-L184

My understanding of that code is: when a component has dynamic props, Vue removes from the props object any key that doesn't exist anymore in the new props.
The problem here is that rawCurrentProps is normalized (camel-case) but rawProps has the kebab-case key. So they don't match so my prop is erased.