Multi-type props defined without value gets empty string, should be true [Boolean, String]

[realcarbonneau]

Version

2.5.13

Reproduction link

https://jsfiddle.net/realcarbonneau/68w22cbo/

Steps to reproduce

Define a multi-type Boolean and String Prop, call the component by specifying the prop name (without a value).

What is expected?

Prop contains true (Boolean type)

What is actually happening?

Prop contains an empty string

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The sequence does not change the result, both [Boolean, String] and [String, Boolean] give the same result. The version does not change the result either (vue version 1.0.12, 2.2.1, edge on jsfiddle)

[posva]

Hmm, looks like the PR #4539 didn't fix what it was supposed to fix. It's curious that this has been around for 1 year since 2.1.7
Also looks like #3885 didn't take into account the ordering on #3879. So ordering didn't have an impact

[alexgrozav]

Any progress on this? I'm experiencing this problem as well.