Clang doesn't compile code but gcc and msvc compiled it

I don't understand what's the problem: either in my code or in the compiler (less possible). There is a piece of code like this:

#include <iostream>
#include <type_traits>
#include <set>


template<typename T, typename = void>
struct TestA: std::false_type {};

template<typename T>
struct TestA<T, std::void_t<typename T::reverse_iterator>> : std::true_type {};

template<typename T>
struct TestA<T, std::void_t<typename T::dummy_iterator>> : std::true_type {};

int main()
{
    std::cout << TestA<std::set<int>>::value;
}

Both GCC and MSVC compile it. I tested it on godbolt with different version of GCC and MSVC 17(local) and 19. Here is a link: https://godbolt.org/z/Enfm6L.

But Clang doesn't compile it and emits an error:

redefinition of `'TestA<T, std::void_t<typename T::dummy_iterator> >'`

And I'm interested - maybe there is some part of the standard where this piece of code is incorrect or maybe something else.