[PostGIS] #5709: ST_ChangeEdgeGeom fails to update face MBR when movement is smaller than float4

[PostGIS]

#5709: ST_ChangeEdgeGeom fails to update face MBR when movement is smaller than
float4
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 Reporter:  strk      |      Owner:  strk
     Type:  defect    |     Status:  new
 Priority:  medium    |  Milestone:  PostGIS 3.4.3
Component:  topology  |    Version:  3.4.x
 Keywords:            |
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 Similarly to what was reported for `ST_RemEdgeModFace` and
 `TopoGeo_addLineString` there are cases in which the MBR of a face gets
 ruined by calling `ST_ChangeEdgeGeom` and slightly moving a vertex.

 Downstream report: https://gitlab.com/nibioopensource/resolve-overlap-and-
 gap/-/issues/74
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5709>
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