[PostGIS] #6120: XX000: SQL/MM Spatial exception - curve not simple

[PostGIS]

#6120: XX000: SQL/MM Spatial exception - curve not simple
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  Reporter:  Lars Aksel Opsahl  |      Owner:  strk
      Type:  defect             |     Status:  new
  Priority:  medium             |  Milestone:  PostGIS 3.6.5
 Component:  topology           |    Version:  3.6.x
Resolution:                     |   Keywords:  robustness
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Comment (by strk):

 it turns out it was a regression in `lwgeom_make_valid` (see #6123) - a
 working fix is in https://gitea.osgeo.org/postgis/postgis/pulls/768 -- it
 needs adding a testcase for it. Tests welcome
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/6120#comment:13>
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