Ignore a mutation that would cause an infinite loop

[poljar]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.72%. Comparing base (cfc4eee) to head (9b1b22e).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #404   +/-   ##
=======================================
  Coverage   91.72%   91.72%           
=======================================
  Files          40       40           
  Lines        5533     5533           
  Branches     5533     5533           
=======================================
  Hits         5075     5075           
  Misses        287      287           
  Partials      171      171           

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[codspeed-hq]

Merging this PR will not alter performance

✅ 6 untouched benchmarks

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_{Comparing poljar/mutants-ingore-infinite-loop (9b1b22e) with main (cfc4eee)}

[poljar]

We don't need this if we merge #405 as we're going to just remove the function we're testing.