SVG empty geometries gives invalid memory alloc

[robe]

This is doing regression between our current 1.5.3 and 2.0.0. I haven't tested our older 2.0.0 yet to see if it was introduced during change to gserialize.

This fails in current 2.0.0 trunk but just returns an empty string in 1.5.

 SELECT ST_AsSVG(foo1.the_geom) As result
							FROM ((SELECT ST_GeomFromText('GEOMETRYCOLLECTION EMPTY',4326) As the_geom
			UNION ALL SELECT ST_GeomFromText('LINESTRING EMPTY',4326) As the_geom
			UNION ALL SELECT ST_GeomFromText('POINT EMPTY',4326) As the_geom ) ) As foo1 LIMIT 3;

error:

ERROR:  invalid memory alloc request size 4294967294

[pramsey]

I bet this is a dupe to #1028.

[pramsey]

Fixed in trunk at r8920