Version

3.0.0

Reproduction link

https://jsbin.com/cavekupoco/edit?html,console,output

Steps to reproduce

when set

props: {
   visible: Boolean,
   show: [Boolean, Number],
},
setup(props) {
     console.log("props", props);
},

will get props.visible === false props.show === false

What is expected?

visible and show not in props

What is actually happening?

visible and show is false

This is expected behavior as same as v2.

@posva @underfin I changed the bug to a feature request. I don't think this is a reasonable design and I hope to modify this default behavior. Especially when there are multiple types.

Please check existions issues on vue 2 repo first and if it still makes sense to you open a proper RFC