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https://issues.apache.org/jira/browse/LUCENE-5222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13769902#comment-13769902
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Robert Muir commented on LUCENE-5222:
-------------------------------------
Note this only happens with the paging collector... searchAfter.
If u change the test to page the old fashioned way its fine.
I suspect a bug in topfieldcollector.pagingfieldcollector. eg when there are
multiple sorts and tiebreaks or something. I don't even think testsearchafter
tests the case of multiple sorts this well.
> TestExpressionSorts fails sometimes when using expression returning score
> -------------------------------------------------------------------------
>
> Key: LUCENE-5222
> URL: https://issues.apache.org/jira/browse/LUCENE-5222
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ryan Ernst
>
> Jenkins picked this up. Repeat with:
> {code}
> ant test -Dtestcase=TestExpressionSorts -Dtests.method=testQueries
> -Dtests.seed=115AD00ED89D9F7B -Dtests.multiplier=3 -Dtests.slow=true
> -Dtests.locale=no_NO -Dtests.timezone=America/Nassau
> -Dtests.file.encoding=US-ASCII
> {code}
> It appears to have to do with scoring, as removing the score sort from the
> original sorts causes the tests to pass. If you remove the possible
> discrepancy between doDocScores and docMaxScore params to searcher.search,
> then the test gets farther before failing.
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