Pivot tables don't export correctly if columns have long names

[thebiglabasky]

Describe the bug

If you create a pivot viz that contains Questions with really long column titles, the pivot export excludes columns from export.

To Reproduce

https://www.loom.com/share/413f8a5792794c00a781fe1646f71547

Expected behavior

No response

Logs

No response

Information about your Metabase installation

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