TestTessellator#testLinesIntersect failure [LUCENE-8744]

Reproduce with:

```java
ant test  -Dtestcase=TestTessellator -Dtests.method=testLinesIntersect -Dtests.seed=D8AE5A1A4CA3A81D -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=ar-IQ -Dtests.timezone=Europe/Sarajevo -Dtests.asserts=true -Dtests.file.encoding=UTF-8
```

---
Migrated from [LUCENE-8744](https://issues.apache.org/jira/browse/LUCENE-8744) by Ignacio Vera (@iverase)
Attachments: [LUCENE-8744.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-8744/LUCENE-8744.patch)

Run the supplied Ant command with TestTessellator#testLinesIntersect and the recorded seed to reproduce the failure. Then inspect the test and the attached LUCENE-8744.patch; done means the failure is understood and the targeted test passes without regressing the surrounding tessellation tests.

Written by the indexing model from the issue text.