Bug Fixes the hasOwn should be used to determine whether an attribute exists. (#737) (65abcb4) observe: solve the Ref not unwrapping on the ssr side issue with recursive way. (#723) (debd37d) shallowReadonly: align behavior with vue-next (#741) (14d1c7b) types: use AnyObject insteads of any (#742) (efb4195)