'too much recursion' for Provided Mixins

[lrembacz]

Version

2.5.7

Reproduction link

https://codesandbox.io/s/2vnzq8659y

Steps to reproduce

Component is a mixins Component with @provided implemented.
We uses @Mixins for another component and after that we getting error.

What is expected?

Getting Provided EventBus and no errors about recursions.

What is actually happening?

There are too much recursions alert and problem with mergeData for components.

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When we are using Provided inside main component there is no error alert.

[posva]

Your code doesn't seem to output that error.
The thing here is that the problem could come from vue-property-decorator since you are heavily using it
To me it looks like this PR #8870 fixes the problem. If it doesn't, please provide a repro without the vue-property-decorator or open an issue there