moving function definition outside does not work as expected

struct Base {
    virtual auto func() && noexcept -> void = 0;
};
struct Derived : public Base {
    auto func() && noexcept -> void override {}
};

I tried "Refactor > Move Definition Outside Class" menu for Derived::func() and here's the result:

struct Base {
    virtual auto func() && noexcept -> void = 0;
};
struct Derived : public Base {
    auto func() && noexcept -> void;
};

void Derived::func() &&noexcept override {}

You can see two problems here:

1. override keyword should not appear in function definition outside class. This is syntax error. Same problem occurs with final keyword. 
2. trailing return type function declaration is converted to pre-C++11 style. This is espacially annoying because I have to rewrite every defintion one by one.

One more thing, you may noticed that the space after reference specifier && is removed in function definition outside class. Eventhough this is a formatting issue and can be fixed by re-formatting, it would be nice to keep original format.