message: elle.Defaulted: Remove catch-all constructor that takes precedence on copy.
diff: @@ -14,15 +14,6 @@ namespace elle
  , _set{set}
  {}
  - template <typename ... Args,
  - typename Sfinae = std::enable_if_t<
  - std::is_constructible<T, Args...>::value, void>>
  - explicit
  - Defaulted(Args&& ... args)
  - : _value(std::forward<Args>(args)...)
  - , _set(true)
  - {}
  -
  Defaulted(Defaulted const&) = default;
  Defaulted(Defaulted&&) = default;
  