[tracker/parser] Sparql: Fix parsing `a'

[Jürg Billeter <juergbi src gnome org>]

commit b4b7f7b6ea62f2246118894d927be40a57b84b01
Author: Jürg Billeter <j bitron ch>
Date:   Fri Aug 7 11:07:07 2009 +0200

    Sparql: Fix parsing `a'

 src/libtracker-data/tracker-sparql-query.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-query.vala b/src/libtracker-data/tracker-sparql-query.vala
index da6851e..8363422 100644
--- a/src/libtracker-data/tracker-sparql-query.vala
+++ b/src/libtracker-data/tracker-sparql-query.vala
@@ -856,7 +856,7 @@ public class Tracker.SparqlQuery : Object {
 				current_predicate = prefix_map.lookup ("") + get_last_string ().substring (1);
 			} else if (current () == SparqlTokenType.A) {
 				next ();
-				current_predicate = get_last_string ();
+				current_predicate = "http://www.w3.org/1999/02/22-rdf-syntax-ns#type";;
 			} else {
 				// TODO error
 			}