[PostGIS] #5572: ST_Difference drops z-dimension on empty result

[PostGIS]

#5572: ST_Difference drops z-dimension on empty result
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  Reporter:  lkajan   |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.3.6
 Component:  postgis  |    Version:  3.4.x
Resolution:           |   Keywords:
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Changes (by robe):

 * milestone:  PostGIS 3.4.1 => PostGIS 3.3.6

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5572#comment:1>
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