访问Base中的受保护副本ctor

Question

GCC和MSVC接受以下片段，但Intellisense（EDG）抱怨：

class Base {
protected:
    Base(Base const&) { }
};


class Derived : public Base {
// Error: protected function Base::base(const Base&) ... is not accessible
// through a "Base" pointer or object.
public:
    Derived(Derived const& src) = default;
};

奇怪的是，接受了等效代码: Base(src) { }。

Intellisense是否有权拒绝违约复制件？