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https://issues.apache.org/jira/browse/LUCENE-7536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15676246#comment-15676246
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ASF subversion and git services commented on LUCENE-7536:
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Commit 6d540b9d7a1a9b944bacb348c7ea681705e462e4 in lucene-solr's branch
refs/heads/master from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=6d540b9 ]
LUCENE-7536: ASCIIFoldingFilterFactory.getMultiTermComponent can emit two
tokens.
> ASCIIFoldingFilterFactory.getMultiTermComponent can emit two tokens
> -------------------------------------------------------------------
>
> Key: LUCENE-7536
> URL: https://issues.apache.org/jira/browse/LUCENE-7536
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-7536.patch
>
>
> My understanding is that it is a requirement for multi-term analysis to only
> normalize tokens, and not eg. remove tokens (stop filter) or add tokens (by
> tokenizing or adding synonyms). Yet
> ASCIIFoldingFilterFactory.getMultiTermComponent will return a factory that
> emits synonyms if preserveOriginal is set to true on the original filter.
> This looks like a bug to me but I'm not entirely sure how to fix it. Should
> the multi-term analysis component do ascii folding or not if the original
> factory has preserveOriginal set to true?
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