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https://issues.apache.org/jira/browse/LUCENE-6593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14593824#comment-14593824
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ASF subversion and git services commented on LUCENE-6593:
---------------------------------------------------------

Commit 1686486 from [~jpountz] in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1686486 ]

LUCENE-6593: Fix ToChildBlockJoinQuery's scorer to not refuse to advance to a 
document that belongs to the parent space.

> ToChildBlockJoinScorer should not fail when advanced on a parent document
> -------------------------------------------------------------------------
>
>                 Key: LUCENE-6593
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6593
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>             Fix For: 5.3
>
>         Attachments: LUCENE-6593.patch
>
>
> ToChildBlockJoinScorer fails if you advance it on a parent document. While 
> this was fine if you wrapped it in a FilteredQuery, it is not if you wrap it 
> in a BooleanQuery because of its approximation support: it can be advanced to 
> a document that has been returned by the approximation of another clause but 
> not confirmed yet. So ToChildBlockJoinScorer should accept any valid doc ID 
> as a target.



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