Set 4404 to Tentatively NAD

Author: tomaszkam

xml/issue4404.xml

@@ -53,6 +53,9 @@ auto r = std::array<int, N>{} | std::views::as_const; // as_const_view<
 auto s2 = to_span(r);
 static_assert(std::same_as&lt;decltype(s2), std::span&lt;const int, N&gt;&gt;); // <span style="color:red;font-weight:bolder">fire, ok after this PR</span>
 </pre></blockquote>
+<p>
+This is breaking change, and we need a paper with analysis.
+</p>
 </discussion>
 
 <resolution>