Fix 'fake' observation block invokation
Fix 'fake' observation block invokation

blairmitchelmore/Block-KVO,blairmitchelmore/Block-KVO,Tricertops/Block-KVO,waynett/Block-KVO,Tricertops/Block-KVO,blairmitchelmore/Block-KVO,waynett/Block-KVO,waynett/Block-KVO,iMartinKiss/Block-KVO,iMartinKiss/Block-KVO