Fix picking correct domain qualified name of shared user for user claim retrieval on organization switch

[AnuradhaSK]

Proposed changes in this pull request

Fix wso2/product-is#23031

Screen.Recording.2025-02-14.at.00.02.36.mov

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PR builder started
Link: https://github.com/wso2/product-is/actions/runs/13314713839

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 56.61%. Comparing base (3d191a2) to head (501cde5).
Report is 13 commits behind head on master.

Files with missing lines	Patch %	Lines
...2/carbon/identity/openidconnect/OIDCClaimUtil.java	0.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2708      +/-   ##
============================================
+ Coverage     56.54%   56.61%   +0.07%     
+ Complexity     8543     8537       -6     
============================================
  Files           654      654              
  Lines         48522    48417     -105     
  Branches      10131    10111      -20     
============================================
- Hits          27436    27413      -23     
+ Misses        17172    17109      -63     
+ Partials       3914     3895      -19     

Flag	Coverage Δ
unit	39.77% <0.00%> (+<0.01%)	⬆️

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PR builder completed
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Status: success

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Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/13314713839