fix: deleted code cell artifacts still showing up

[AyushAgrawal-A2]

closes #2078

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Name	Status	Preview	Updated (UTC)
quadratic	✅ Ready (Inspect)	Visit Preview	Nov 17, 2024 4:06am

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.82%. Comparing base (32c3a26) to head (fc5f565). Report is 31 commits behind head on qa.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## qa #2081 +/- ## ========================================== - Coverage 93.06% 90.82% -2.24% ========================================== Files 215 260 +45 Lines 54338 57546 +3208 ========================================== + Hits 50568 52269 +1701 - Misses 3770 5277 +1507 ```

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[davidfig]

Nice find

[luke-quadratic]

Have tried very hard, cannot recreate; is minimally a big improvement since this is persistent and easy to recreate in prod.