Getting NavigationDuplicated errors since 3.1.0 - but for now everything works

[samydoesit]

Version

3.1.1

Reproduction link

https://github.com/samydoesit/vueTestError

Steps to reproduce

• cd vueTestError/actualSite
• npm run serve
• Console shows uncatched Error (NavigationDuplicated)

What is expected?

No errors

What is actually happening?

Everything works fine just this error is showing up

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I've been searching for my mistake for a while now but i dont know what im doing wrong.

[posva]

See #2872 (comment) and #2873 (comment)