only show --allow-partial suggestion if user hasn't used it

[atravitz]

Checklist

• Added a news entry

Developers certificate of origin

• I certify that this contribution is covered by the MIT License here and the Developer Certificate of Origin at https://developercertificate.org/.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.57%. Comparing base (35aa3aa) to head (07c5da2).
Report is 98 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1208      +/-   ##
==========================================
- Coverage   94.20%   92.57%   -1.64%     
==========================================
  Files         141      141              
  Lines       10668    10669       +1     
==========================================
- Hits        10050     9877     -173     
- Misses        618      792     +174     

Flag	Coverage Δ
fast-tests	92.57% <100.00%> (?)
slow-tests	?

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[mikemhenry]

LGTM -- one idea that is non-blocking, a test that has and doesn't have the allow_partial flag and we assert the error is raised and the warning is raised, depending on the case

[atravitz]

LGTM -- one idea that is non-blocking, a test that has and doesn't have the allow_partial flag and we assert the error is raised and the warning is raised, depending on the case

good idea - a check already exists for the error, but I added a pytest.warns(match) for good measure

[github-actions]

No API break detected ✅