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https://issues.apache.org/jira/browse/LUCENE-9400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17136372#comment-17136372
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ASF subversion and git services commented on LUCENE-9400:
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Commit 75491ab3814cf1544987296ce958137f2fc75e8a in lucene-solr's branch
refs/heads/master from Ignacio Vera
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=75491ab ]
LUCENE-9400: Tessellator might fail when several holes share the same vertex
(#1562)
> Tessellator might fail when several holes share the same vertex
> ---------------------------------------------------------------
>
> Key: LUCENE-9400
> URL: https://issues.apache.org/jira/browse/LUCENE-9400
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ignacio Vera
> Priority: Major
> Attachments: image-2020-06-10-09-54-46-316.png
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We found a new case where tessellation might fail on a valid polygon. The
> issue shows when a polygon has several holes sharing the same vertex. In this
> case the merging logic for holes might fail creating an invalid polygon. For
> example a polygon like this one:
>
> !image-2020-06-10-09-54-46-316.png|width=260,height=266!
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