Weird use of `?:` in `typeid` code

In one of the projects I'm working on, I'm seeing this code

struct Base {
  virtual ~Base() { }
};

struct ClassX {
  bool isHoldingDerivedObj() const {
    return typeid(1 ? *m_basePtr : *m_basePtr) == typeid(Derived);
  }
  Base *m_basePtr;
};

I have never seen typeid used like that. Why does it do that weird dance with ?:, instead of just doing typeid(*m_basePtr)? Could there be any reason? Base is a polymorphic class (with a virtual destructor).

EDIT: At another place of this code, I'm seeing this and it appears to be equivalently "superfluous"

template<typename T> T &nonnull(T &t) { return t; }

struct ClassY {
  bool isHoldingDerivedObj() const {
    return typeid(nonnull(*m_basePtr)) == typeid(Derived);
  }
  Base *m_basePtr;
};