[Bug libstdc++/119282] views::transform producing ranges piped to views::join | ranges::to<std::vector>() fails to compile in constant evaluation.

[email at miropalmu dot cc]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119282

--- Comment #2 from Miro Palmu <email at miropalmu dot cc> ---
Adding rn::to<std::vector>() between rv::transform and rv::join makes it
compile.

(I forgot --version flag to gcc trunk in above Compiler Explorer link.)