Fix Missing idToken during Session Migration from v3 to v4 #2116

[KentoMoriwaki]

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

📋 Changes

• I changed convertFromLegacy function to handle idToken and updated related specs.

📎 References

• Missing idToken during Session Migration from v3 to v4 #2116 (comment)

🎯 Testing

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.49%. Comparing base (98785c2) to head (b434dc4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2120   +/-   ##
=======================================
  Coverage   82.48%   82.49%           
=======================================
  Files          21       21           
  Lines        2027     2028    +1     
  Branches      356      357    +1     
=======================================
+ Hits         1672     1673    +1     
  Misses        348      348           
  Partials        7        7           

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[frederikprijck]

Thanks for the PR. If you can ensure the commits are signed, we can look into merging this PR.

[KentoMoriwaki]

All commits are now signed ✔️
Please let me know if there’s anything else I should adjust. Thanks for reviewing!