fix for reported bug: http://rdflib.net/pipermail/dev/2007-July/000206.html
fix for reported bug: http://rdflib.net/pipermail/dev/2007-July/000206.html

yingerj/rdflib,dbs/rdflib,ssssam/rdflib,yingerj/rdflib,ssssam/rdflib,armandobs14/rdflib,RDFLib/rdflib,avorio/rdflib,ssssam/rdflib,RDFLib/rdflib,ssssam/rdflib,marma/rdflib,avorio/rdflib,armandobs14/rdflib,marma/rdflib,avorio/rdflib,yingerj/rdflib,marma/rdflib,dbs/rdflib,armandobs14/rdflib,dbs/rdflib,avorio/rdflib,RDFLib/rdflib,RDFLib/rdflib,marma/rdflib,dbs/rdflib,yingerj/rdflib,armandobs14/rdflib