getTopRows() and getBottomRows() Not Referentially Stable Between Renders

[ryanagillie]

TanStack Table version

v8.17.3

Framework/Library version

React v18.3.1

Describe the bug and the steps to reproduce it

The result of getTopRows() and getBottomRows() referentially changes between renders even when rows have not been added / removed to the top or bottom. getCenterRows() behaves correctly.

Ran into this while trying to create a performant virtualizer with pinned rows & custom range extractor.

In the codesandbox example open the console and continuously click the "rerender" button, the console will continuously print "Top Rows Changed" / "Bottom Rows Changed" while center does not.

Your Minimal, Reproducible Example - (Sandbox Highly Recommended)

https://codesandbox.io/p/devbox/peaceful-lake-3f29m5?file=%2Fsrc%2Fmain.tsx%3A93%2C38

Screenshots or Videos (Optional)

No response

Do you intend to try to help solve this bug with your own PR?

No, because I do not have time to dig into it

Terms & Code of Conduct

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• I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.