Fixed a problem with the unit test when there are sets with no changes.
Fixed a problem with the unit test when there are sets with no changes.

git-svn-id: bf0bd98e94caaaf89d4dca54eab1bef459ce3438@1171 59da171f-624f-0410-aa54-27559c288bec

a1ezzz/duplicati,AndersGron/duplicati,gerco/duplicati,AndersGron/duplicati,agrajaghh/duplicati,mnaiman/duplicati,mnaiman/duplicati,mnaiman/duplicati,mnaiman/duplicati,agrajaghh/duplicati,gerco/duplicati,gerco/duplicati,duplicati/duplicati,a1ezzz/duplicati,duplicati/duplicati,duplicati/duplicati,sitofabi/duplicati,agrajaghh/duplicati,duplicati/duplicati,sitofabi/duplicati,agrajaghh/duplicati,klammbueddel/duplicati,mnaiman/duplicati,AndersGron/duplicati,klammbueddel/duplicati,klammbueddel/duplicati,sitofabi/duplicati,AndersGron/duplicati,sitofabi/duplicati,agrajaghh/duplicati,sitofabi/duplicati,gerco/duplicati,klammbueddel/duplicati,a1ezzz/duplicati,gerco/duplicati,klammbueddel/duplicati,duplicati/duplicati,AndersGron/duplicati,a1ezzz/duplicati,a1ezzz/duplicati