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Does APP router suffer from the same ISR memory cache issue the PAGE router suffers from?

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Ratonero Mallorquin posted this in #help-forum
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Ratonero MallorquinOP
In the NextJS app router there is a long standing bug that can make deleted pages magically "reappear" once the cache size is exhausted. This happens either when specifically setting the cache to a low value, OR when using the default value and having many pages.

Read more about the issue here:
https://github.com/vercel/next.js/issues/37945

I'm trying to learn how the APP router works, but it's very hard to figure out the inner workings of NextJS caching/webserver as they are a bit of a black box from the documentation perspective.

Does anyone know if the architecture of app router by default will alleviate this, or is there risk/chance of running into this issue there as well?

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