[PostGIS] #6065: ValidateTopology fails to report invalid side-labeling

[PostGIS]

#6065: ValidateTopology fails to report invalid side-labeling
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  Reporter:  strk      |      Owner:  strk
      Type:  defect    |     Status:  reopened
  Priority:  medium    |  Milestone:  PostGIS 3.7.0
 Component:  topology  |    Version:  master
Resolution:            |   Keywords:
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Comment (by strk):

 For the record GEOS CoordSeq_isCCW would also fail to determine the
 CLOCKWISE  orientation of the problematic ring (which is the correct
 answer). I've filed a GEOS ticket for that:
 https://github.com/libgeos/geos/issues/1425
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/6065#comment:10>
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