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https://issues.apache.org/jira/browse/SOLR-12393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16952086#comment-16952086
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Munendra S N commented on SOLR-12393:
-------------------------------------

 [^SOLR-12393.patch] 
In the latest patch, I have changed the condition so that scores are populated 
when when sort = null or score desc (default). In both these cases, 
TopScoreDocCollector is used which always populates the scores.

[~dsmiley]
One more thing I observed is that, {{maxScore}} is always {{NaN}} when scores 
are requested. For populating {{maxScore}} in case of non-default score, we 
might need to use {{MaxScoreCollector}}. In Any case, this is not handled as 
part of the patch. I will create new issue for this

> ExpandComponent only calculates the score of expanded docs when sorted by 
> score
> -------------------------------------------------------------------------------
>
>                 Key: SOLR-12393
>                 URL: https://issues.apache.org/jira/browse/SOLR-12393
>             Project: Solr
>          Issue Type: Bug
>          Components: SearchComponents - other
>            Reporter: David Wayne Smiley
>            Priority: Major
>         Attachments: SOLR-12393.patch, SOLR-12393.patch, SOLR-12393.patch, 
> SOLR-12393.patch
>
>
> If you use the ExpandComponent to show expanded docs and if you want the 
> score back (specified in "fl"), it will be NaN if the expanded docs are 
> sorted by anything other than the default score descending.



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