[jira] [Commented] (LUCENE-8740) AssertionError FlattenGraphFilter

["Geoffrey Lawson (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-8740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17407845#comment-17407845 ] 

Geoffrey Lawson commented on LUCENE-8740:
-----------------------------------------

Hello [~markus17] I'm confirming if the recent change to `FlattenGraphFilter` has resolved this issue. I can confirm that the attached test fails without the fix with an empty assertion error from `FlattenGraphFilter.releaseBufferedToken`. With the fix I do not get this error. The test still fails because the output of minHashFilter is a hash and the test is expecting text, but I believe the underlying issue is resolved.

> AssertionError FlattenGraphFilter
> ---------------------------------
>
>                 Key: LUCENE-8740
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8740
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 7.5, 8.0
>            Reporter: Markus Jelsma
>            Priority: Major
>             Fix For: 8.1, main (9.0)
>
>         Attachments: LUCENE-8740.patch
>
>
> Our unit tests picked up an unusual AssertionError in FlattenGraphFilter which manifests itself only in very specific circumstances involving WordDelimiterGraph, StopFilter, FlattenGraphFilter and MinhashFilter.



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