Clang Defect with enums inside a templated class

[fatal-err]

There's a problem with (even the current trunk version) of clang with this code:

#include <https://raw.githubusercontent.com/Neargye/magic_enum/master/include/magic_enum.hpp>

template <typename T = int>
struct test {
    enum class Color { RED, BLUE, GREEN};
};

template <typename type>
static constexpr bool are_values_sequential = []() constexpr noexcept -> bool {
    const auto vals = magic_enum::enum_values<type>();
    for (std::size_t i = 0; i < vals.size(); ++i)
        if (magic_enum::enum_integer(vals[i]) != i)
            return false;
    return true;
}();

static_assert(are_values_sequential<test<int>::Color>);

https://godbolt.org/z/KWWE1f

https://raw.githubusercontent.com/Neargye/magic_enum/master/include/magic_enum.hpp:653:3: error: static_assert failed due to requirement 'detail::count_v<test<int>::Color, false> > 0' "magic_enum requires enum implementation and valid max and min."

The above code works in GCC though.

The problem seems to appear when the enum is inside a templated class.

[Neargye]

I do not yet know what is the reason for this behavior.

But workaround static_assert(are_values_sequential<decltype(test<int>::Color::RED)>); - work on clang.