[postgis-tickets] [PostGIS] #4910: Conversion from Postgis geometry to GML 3.1.1 and back fails

[PostGIS]

#4910: Conversion from Postgis geometry to GML 3.1.1 and back fails
---------------------------+---------------------------
  Reporter:  tomassejkora  |      Owner:  pramsey
      Type:  defect        |     Status:  new
  Priority:  high          |  Milestone:  PostGIS 3.1.4
 Component:  postgis       |    Version:  3.1.x
Resolution:                |   Keywords:  GML 3.1.1
---------------------------+---------------------------

Comment (by pramsey):

 Huh, I assumed this would be some quirk of GML output, but it seems tied
 to the second element of the multipolygon which is a degenerate collapsed
 polygon. This reduced example also generates the error
 {{{
 WITH g(geom) AS (
    SELECT 'POLYGON((-804030.52 -988525.62,-804026.137267668
 -988528.6887703099,-804026.14 -988528.6900000001,-804030.52
 -988525.62))'::geometry
 )
 SELECT
   ST_GeomFromGML(
     ST_AsGML(3, geom, 2, 0, 'gml', NULL),
   5514)
 FROM g;
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4910#comment:4>
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