fixed typo in test case. use deep copies of filters object (modified in test cases)
fixed typo in test case. use deep copies of filters object (modified in test cases)

BioInf-Wuerzburg/AliTV,BioInf-Wuerzburg/AliTV,BioInf-Wuerzburg/AliTV,BioInf-Wuerzburg/AliTV,BioInf-Wuerzburg/AliTV,AliTVTeam/AliTV,AliTVTeam/AliTV,BioInf-Wuerzburg/AliTV