[tracker] Do not remove tracker:added or tracker:modified on DROP GRAPH

[Jürg Billeter <juergbi src gnome org>]

commit bd948820e9ffb741e2309e2cf9eca13249c3daf0
Author: Jürg Billeter <j bitron ch>
Date:   Tue Jan 19 17:12:35 2010 +0100

    Do not remove tracker:added or tracker:modified on DROP GRAPH
    
    Fixes NB#144725.

 data/ontologies/11-rdf.ontology |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/data/ontologies/11-rdf.ontology b/data/ontologies/11-rdf.ontology
index 4b0d051..4d177d4 100644
--- a/data/ontologies/11-rdf.ontology
+++ b/data/ontologies/11-rdf.ontology
@@ -98,11 +98,13 @@ tracker:weight a rdf:Property ;
 tracker:added a rdf:Property ;
 	nrl:maxCardinality 1 ;
 	rdfs:domain rdfs:Resource ;
-	rdfs:range xsd:dateTime .
+	rdfs:range xsd:dateTime ;
+	tracker:isAnnotation true .
 
 # implicitly updated modification time
 tracker:modified a rdf:Property ;
 	nrl:maxCardinality 1 ;
 	rdfs:domain rdfs:Resource ;
-	rdfs:range xsd:integer .
+	rdfs:range xsd:integer ;
+	tracker:isAnnotation true .