navneet1v commented on issue #14175:
URL: https://github.com/apache/lucene/issues/14175#issuecomment-2650199394

   @ChrisHegarty I did some debugging on this failed test and what I found is 
for the particular see the Lucene99ScalarQuantizedVectorsFormat is getting 
picked from a list of formats which gets created here 
(https://github.com/apache/lucene/blob/6b0112cdee284cae9143402d7dd80fdaf4d22f93/lucene/test-framework/src/java/org/apache/lucene/tests/index/RandomCodec.java#L267).
 Now due to this Quantized format, scores of 0th doc and 2nd doc becomes same 
causing the failure, as it is not guaranteed which doc will come first. 
   
   Code ref: 
https://github.com/apache/lucene/blob/6b0112cdee284cae9143402d7dd80fdaf4d22f93/lucene/test-framework/src/java/org/apache/lucene/tests/index/RandomCodec.java#L210-L219
 
   
   
   One way I think we can fix this is rather than checking the order of docs, 
we should compare if all the docs we expect are present or not. 
    


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