Fix auth url post refactor when tokens are used

[d-j-hatton]

Thanks to George for finding this

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 33.56%. Comparing base (a5e1fa5) to head (f515323).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #647   +/-   ##
=======================================
  Coverage   33.56%   33.56%           
=======================================
  Files          92       92           
  Lines       11254    11254           
  Branches     1474     1474           
=======================================
  Hits         3777     3777           
  Misses       7350     7350           
  Partials      127      127           

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