[PostGIS] #5632: After creating the index of GIST, ST_Equals gives the incorrect answer.

[PostGIS]

#5632: After creating the index of GIST, ST_Equals gives the incorrect answer.
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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):

 Smaller replicator
 {{{
 DROP TABLE IF EXISTS t;
 CREATE TABLE t AS
   SELECT 1 AS id, 'POINT EMPTY'::geometry AS geom;
 CREATE INDEX idx ON t USING GIST (geom);
 SELECT * FROM t WHERE geom ~= 'POINT EMPTY'::geometry;
 SET enable_seqscan = false;
 SELECT * FROM t WHERE geom ~= 'POINT EMPTY'::geometry;
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5632#comment:1>
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