[postgis-tickets] [PostGIS] #4824: GEOS 3.9 + nowagyu = failure(4348Clip)

[PostGIS]

#4824: GEOS 3.9 + nowagyu = failure(4348Clip)
---------------------+---------------------------
 Reporter:  pramsey  |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 3.1.1
Component:  postgis  |    Version:  2.5.x
 Keywords:           |
---------------------+---------------------------
 The regression test 4348Clip in mvt.sql fails when run with --nowagyu
 against GEOS 3.9. The test expects an error between 21950 and 22050, but
 the area returned is
 {{{
  ?column?  | st_area
 -----------+----------
  #4348Clip | 110888.5
 }}}
 It looks like the makevalid in 3.9 is coming up with a different answer
 than in 3.8 which is unfortunate to say the least. It's possible that the
 latest version of GEOS 3.9, which includes a change to buffer(0) would
 allow a zero-radius buffer to do a "better" valid formation than
 makevalid.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4824>
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