fmt::format_to_n does not work with FMT_COMPILE-d format string

[0xb8]

Example code: https://godbolt.org/z/erD-_a

In v6 fmt::format_to_n() seems to work with fmt::compile()-d format string.
In v7 though, just fmt::format_to() is working with FMT_COMPILE().

[bgemmill]

A workaround for now is to use fmt's truncating iterator with fmt::format_to:

  static const auto formatter = FMT_COMPILE("{}");
  std::array<char, 512> s2{0};

// These two lines should be equivalent
//  auto it = fmt::format_to_n(s0.data(), 512, formatter, 42).out; // fails at compile time
  auto it = fmt::format_to(fmt::detail::truncating_iterator<char*>(s2.data(), s2.size()), formatter, 42).base();

  std::cout << s2.data() << std::endl;

[vitaut]

A PR to add format_to_n overload that accepts FMT_COMPILE is welcome.

[vitaut]

Implemented in #1767 and #1869. Thanks @Kurkin and @alexezeder.