[jira] [Commented] (LUCENE-10674) BitSetConjunctionDISI iterators fall out of sync when lead doc >= minlength of bitsets

["Jack Mazanec (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-10674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17579854#comment-17579854 ] 

Jack Mazanec commented on LUCENE-10674:
---------------------------------------

{color:#1d1c1d}Anyone have any thoughts? If not I will go ahead and open a PR{color}

> BitSetConjunctionDISI iterators fall out of sync when lead doc >= minlength of bitsets
> --------------------------------------------------------------------------------------
>
>                 Key: LUCENE-10674
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10674
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/search
>    Affects Versions: 9.0, 9.1, 9.2, 9.3
>            Reporter: Jack Mazanec
>            Priority: Minor
>
> In [BitSetConjunctionDISI.doNext()|https://github.com/apache/lucene/blob/releases/lucene/9.3.0/lucene/core/src/java/org/apache/lucene/search/ConjunctionDISI.java#L283-L285] if the lead doc is greater than or equal to the length of any of the BitSets, NO_MORE_DOCS is returned. On subsequent calls to [BitSetConjunctionDISI.docId(),|https://github.com/apache/lucene/blob/releases/lucene/9.3.0/lucene/core/src/java/org/apache/lucene/search/ConjunctionDISI.java#L263] the lead's docID which is not exhausted will be returned. I think this could be fixed by calling lead.advance(NO_MORE_DOCS) before returning NO_MORE_DOCS in doNext.
>  
> Related issue: https://issues.apache.org/jira/browse/LUCENE-9541



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