[PostGIS] #5885: ST_Intersection with gridSize argument does not internally use ReducePrecision ?

[PostGIS]

#5885: ST_Intersection with gridSize argument does not internally use
ReducePrecision ?
---------------------+----------------------------
 Reporter:  strk     |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 3.1.13
Component:  postgis  |    Version:  3.1.x
 Keywords:           |
---------------------+----------------------------
 I would expect the following queries to give the same result, instead they
 don't:

 {{{
   =# select ST_AsText( ST_Intersection(e1, e2, 1e-14) ) from t5862_inputs;
    POINT(22.77996926687162 70.70480392614921)

   =# select ST_AsText( ST_Intersection(ST_ReducePrecision(e1, 1e-14),
 ST_ReducePrecision(e2, 1e-14), 1e-14) ) from t5862_inputs;
    LINESTRING(22.78003855687162 70.7049816061492,22.77996926687162
 70.70480392614921)

   =# select ST_AsText( ST_Intersection(ST_SnapToGrid(e1, 1e-14),
 ST_SnapToGrid(e2, 1e-14), 1e-14) ) from t5862_inputs;
    LINESTRING(22.78003855687162 70.7049816061492,22.77996926687162
 70.70480392614921)

 }}}

 According to the documentation (and my intentions when I wrote that code)
 those geometries should be made of the requested precision before passing
 them to the intersection code so we should have the same results:

 https://postgis.net/docs/ST_Intersection.html

 The gridSize parameter was added in PostGIS-3.1
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5885>
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