Fix: handle user roles as enum

[didoda]

This provides a fix to handle user roles control as for enum, with select.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.77%. Comparing base (6e7c325) to head (bd0dd48).
⚠️ Report is 14 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1351   +/-   ##
=========================================
  Coverage     99.77%   99.77%           
- Complexity     1503     1504    +1     
=========================================
  Files           102      102           
  Lines          5882     5883    +1     
=========================================
+ Hits           5869     5870    +1     
  Misses           13       13           

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