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https://issues.apache.org/jira/browse/LUCENE-5818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-5818:
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Attachment: LUCENE-5818.patch
Simple patch with some tests. This might be a bug i introduced when cutting
over to FST, because we had no test for it before.
> Fix hunspell zero-string overgeneration
> ---------------------------------------
>
> Key: LUCENE-5818
> URL: https://issues.apache.org/jira/browse/LUCENE-5818
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Attachments: LUCENE-5818.patch
>
>
> Currently, its allowed to strip suffixes/prefixes all the way down to the
> empty string. But this is not really allowed, and creates overgeneration in
> some cases (especially where endings can be standalone ... typically these
> are stopwords so it causes a lot of damage).
> Example is czech 'už' which should just stem to itself, but today also stems
> to 'úžit' because it has a flag compatible with that.
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