Spatial predicate covers is incorrect for a LINE against a GEOMETRYCOLLECTION containing a POLYGON EMPTY

[dr-jts]

The covers spatial predicate gives an incorrect result for the case of a a GEOMETRYCOLLECTION containing a POLYGON EMPTY.

bin/geosop -a "LINESTRING(75 15,55 43)" -b "GEOMETRYCOLLECTION(POLYGON EMPTY,LINESTRING(75 15,55 43))" covers 
==> false

This is likely due to the dimension of the collection being determined as 2 and the predicate logic being short-circuited based on that.

Reported in https://trac.osgeo.org/postgis/ticket/5640

[dr-jts]

Fixed by d963c0f