False positive in circular structure detection

[m-lautenbach]

Bug report

Describe the bug

Dev server interprets arrays containing the same object multiple times as circular structure.

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

1. call isSerializableProps on an object containing an array which contains the same object twice
2. this happened to us during development (presumably because ApolloJS in-memory cache)

Expected behavior

An array which contains the same object twice should not be rejected a cyclical.

Screenshots

System information

should be system independent, but happy to provide if it can't be reproduced.

Additional context

I opened a pull request with a fix and a test case to cover it: #16380

[jamesmosier]

Closing as #16380 was merged.

[m-lautenbach]

thanks 👍

[balazsorban44]

This issue has been automatically locked due to no recent activity. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.