LWG3474 Nesting join_views is broken because of CTAD

Author: burblebee

source/ranges.tex

@@ -4946,7 +4946,7 @@
 range adaptor object\iref{range.adaptor.object}.
 Given a subexpression \tcode{E}, the expression
 \tcode{views::join(E)} is expression-equivalent to
-\tcode{join_view\{E\}}.
+\tcode{join_view<views::all_t<decltype((E))>>\{E\}}.
 
 \pnum
 \begin{example}