Simplify (request.cookies.)getlist function

[Tronic]

Removes a default value in case no matches were found, in which case it previously defaulted to None. Instead, return an empty list which is more sensible in this case as the return value will then always be a list.

Presumably practically no-one uses this functionality, and Pythonic tests if None and if [] are equal. In case you do need a default value, there is an easy and a more efficient alternative because the fallback value after or is only constructed if needed and not in any case:

list_of_foo = request.cookies.getlist("foo") or ["my", "default", "value"]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.463%. Comparing base (fcbd747) to head (4cc9166).
Report is 1 commits behind head on main.

❗ Current head 4cc9166 differs from pull request most recent head c806362

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Additional details and impacted files

@@              Coverage Diff              @@
##              main     #2838       +/-   ##
=============================================
- Coverage   87.617%   87.463%   -0.154%     
=============================================
  Files          101       101               
  Lines         7575      7626       +51     
  Branches      1329      1340       +11     
=============================================
+ Hits          6637      6670       +33     
- Misses         641       658       +17     
- Partials       297       298        +1     

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