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https://issues.apache.org/jira/browse/LUCENE-5781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039788#comment-14039788
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Michael McCandless commented on LUCENE-5781:
--------------------------------------------
Actually I thought this approach was clear? I.e. it doesn't really
make the code complex.
If you can think of a simpler way I'm all for it ... really I'd like
to understand why the ParametricDescription is creating these dead
states in the first place. That doesn't seem right; maybe a fix there
would be simpler.
I'll add more comments and remove the TODO.
> don't create unused states in LevenshteinAutomata
> -------------------------------------------------
>
> Key: LUCENE-5781
> URL: https://issues.apache.org/jira/browse/LUCENE-5781
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0, 4.10
>
> Attachments: LUCENE-5781.patch
>
>
> While working on LUCENE-5752 I discovered that LevenshteinAutomata creates
> unused states with cycles. I think they are basically harmless but we still
> shouldn't create them?
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