test cached property does not mask attribute errors
test cached property does not mask attribute errors

SlivTime/iktomi,Lehych/iktomi,SmartTeleMax/iktomi,oas89/iktomi,Lehych/iktomi,Lehych/iktomi,boltnev/iktomi,boltnev/iktomi,oas89/iktomi,SmartTeleMax/iktomi,SlivTime/iktomi,SmartTeleMax/iktomi,boltnev/iktomi,SlivTime/iktomi,oas89/iktomi