Just saw this in a fiddle that has a nested update bug:

It would be nice to just dedupe them in the first place instead of calling console.error a thousand times.
Same for this one:

I am interested in taking this up. This would be one of my first open source contributions and I am really excited about it :)
Sounds great! You'll need to search the codebase to find where we fire these two warnings, and then add boolean variables for each. If we fire it once, we set a boolean. Next time we check a boolean before firing it, and skip if the boolean is already set.
If you have any questions feel free to ping me here.
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I am interested in taking this up. This would be one of my first open source contributions and I am really excited about it :)