[PostGIS] #5646: ST_Collect using EMPTY crashes ST_Intersects

[PostGIS]

#5646: ST_Collect using EMPTY crashes ST_Intersects
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  Reporter:  Wenjing  |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.4.2
 Component:  postgis  |    Version:  3.4.x
Resolution:           |   Keywords:
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Comment (by pramsey):

 Ah, it's a problem in the point-in-polygon cached index. As it happens I'm
 re-writing that now, but I guess I have to also find a fix for this
 problem.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5646#comment:5>
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