Document bug or regression bug - ST_Line_Locate_Point for multilinestring

[robe]

I thought Paul had revised this function in 1.5.1 to work with multilinestrings.

If I take the example and change it to:

 http://www.postgis.org/docs/ST_Line_Locate_Point.html

SELECT ST_AsText(house_loc) As as_text_house_loc,
	startstreet_num +
		CAST( (endstreet_num - startstreet_num)
			* ST_Line_Locate_Point(street_line, house_loc) As integer) As street_num
FROM
(SELECT ST_Multi(ST_GeomFromText('LINESTRING(1 2, 3 4)')) As street_line,
	ST_MakePoint(x*1.01,y*1.03) As house_loc, 10 As startstreet_num,
		20 As endstreet_num
FROM generate_series(1,3) x CROSS JOIN generate_series(2,4) As y)
As foo
WHERE ST_DWithin(street_line, house_loc, 0.2);

It gives a

ERROR:  line_locate_point: 1st arg isnt a line

on both my 1.5.3 and 2.0 installs

[robe]

wiped out the statement in the docs at r8483 for 1.5 and r8482 for 2.0. I'm taking Paul's lack of interest as he doesn't remember ever coding this either and purely a documentation mistake.