[PR #9851/541d86d backport][3.11] Fix incorrect parsing of chunk extensions with the pure Python parser

[bdraco]

(cherry picked from commit 541d86d)

[codspeed-hq]

CodSpeed Performance Report

Merging #9854 will not alter performance

_{Comparing patchback/backports/3.11/541d86d9e7884590c655876cd40042565293d8df/pr-9851 (a7e4a52) with 3.11 (354489d)}

Summary

✅ 24 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.99%. Comparing base (fe0a6e6) to head (a7e4a52).
Report is 189 commits behind head on 3.11.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.11    #9854   +/-   ##
=======================================
  Coverage   97.99%   97.99%           
=======================================
  Files         119      119           
  Lines       36349    36366   +17     
  Branches     4358     4361    +3     
=======================================
+ Hits        35620    35638   +18     
  Misses        545      545           
+ Partials      184      183    -1     

Flag	Coverage Δ
CI-GHA	97.88% <100.00%> (+<0.01%)	⬆️
OS-Linux	97.58% <100.00%> (-0.01%)	⬇️
OS-Windows	94.43% <100.00%> (+<0.01%)	⬆️
OS-macOS	96.69% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	96.53% <100.00%> (+<0.01%)	⬆️
Py-3.10.15	97.09% <100.00%> (-0.05%)	⬇️
Py-3.11.10	97.15% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	96.61% <100.00%> (+<0.01%)	⬆️
Py-3.12.7	97.65% <100.00%> (+<0.01%)	⬆️
Py-3.13.0	97.64% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	96.46% <100.00%> (-0.01%)	⬇️
Py-3.9.20	97.05% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	96.61% <77.77%> (-0.01%)	⬇️
VM-macos	96.69% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	97.58% <100.00%> (-0.01%)	⬇️
VM-windows	94.43% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.