ClipByBox2D against GEOS 3.10 head failing

[robe]

Both winnie and debbie are failing with this regress failure and are running using last GEOS main commit.

04:05:50  ./regress/core/clipbybox2d .. failed (diff expected obtained: /var/lib/jenkins/workspace/postgis/tmp/3_2_pg14w64/test_89_diff)
04:05:50 -----------------------------------------------------------------------------
04:05:50 --- ./regress/core/clipbybox2d_expected	2020-12-16 21:48:07.371171208 +0000
04:05:50 +++ /var/lib/jenkins/workspace/postgis/tmp/3_2_pg14w64/test_89_out	2021-05-02 08:05:50.739289748 +0000
04:05:50 @@ -4,7 +4,7 @@
04:05:50  4|POINT(2 2)
04:05:50  5|POLYGON((2 2,8 2,2 8,8 8,2 2))
04:05:50  6|POLYGON((2.5 2,5 4,5 5,5 4,7.5 2,2.5 2))
04:05:50 -7|POLYGON((2 2,2 5,5 5,5 2,2 2))
04:05:50 +7|GEOMETRYCOLLECTION EMPTY
04:05:50  8|SRID=3857;POLYGON EMPTY
04:05:50  9|SRID=4326;POINT(0 0)
04:05:50  10|
04:05:50 -----------------------------------------------------------------------------

[pramsey]

I'm actually getting a crash on that test.

[Paul Ramsey <pramsey@…>]

In 3efe42e/git:

Restore logic to repair rings as necessary before handing off to GEOS, closes #4904