Fixed #752: make sure data is not read if it could not be found
Fixed #752: make sure data is not read if it could not be found

andykog/mobx,mweststrate/MOBservable,mweststrate/MOBservable,mobxjs/mobx,mobxjs/mobx,andykog/mobx,andykog/mobservable,andykog/mobservable,mobxjs/mobx,mobxjs/mobx,mweststrate/MOBservable