C++ backend prints NULL instead of null

[robin-aws]

Dafny version

4.1.0

Code to produce this issue

class C {}

method Main() {
  var n: C? := null;
  print n, "\n";
}

Command to run and resulting output

% dafny run -t:cs src/Scratch.dfy --unicode-char:false

Dafny program verifier finished with 0 verified, 0 errors
null
% dafny run -t:cpp src/Scratch.dfy --unicode-char:false

Dafny program verifier finished with 0 verified, 0 errors
NULL

What happened?

Even better, if you print null directly without given the null value a more precise type, you get nullptr.

What type of operating system are you experiencing the problem on?

Mac