Julie Tibshirani created LUCENE-9501:
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             Summary: IndexSortSortedNumericDocValuesRangeQuery violates 
iterator invariant.
                 Key: LUCENE-9501
                 URL: https://issues.apache.org/jira/browse/LUCENE-9501
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Julie Tibshirani


In LUCENE-7714 added a new query to sandbox called 
IndexSortSortedNumericDocValuesRangeQuery that optimizes range calculations 
when the field is sorted. The query has a bad bug: its DocIdSetIterator can 
return an old value for docID() even after advance has returned NO_MORE_DOCS. 
This violates the DocIdSetIterator contract and means that it's possible for 
DocIdSetIterator#advance to be called when it's already been exhausted (which 
can result in invalid reads).

We would have expected this issue to be caught in tests, especially because 
classes like AssertingIndexSearcher check for these invariants. As part of this 
fix I'll look into improvements to the Asserting* wrapper framework.



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