fix: make sure that use self comes out of formatter when self is used

[tstirrat15]

Description

When I went to test authzed/playground#103, I realized that we weren't properly handling self as far as generating the flag went.

Changes

• Add a test
• Fix the test

Testing

Review.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.89%. Comparing base (286d6e8) to head (f8ad125).
⚠️ Report is 1 commits behind head on main.

❌ Your project status has failed because the head coverage (74.89%) is below the target coverage (75.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2885      +/-   ##
==========================================
- Coverage   74.93%   74.89%   -0.04%     
==========================================
  Files         484      484              
  Lines       57996    57997       +1     
==========================================
- Hits        43452    43429      -23     
- Misses      11514    11536      +22     
- Partials     3030     3032       +2     

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