Pod::To::Text is mishandling footnotes.

[cfa]

The Problem

Footnote codes (N<>) are incorrectly handled by Pod::To::Text. Given

=begin pod
TestN<note>.
=end pod

perl6 --doc outputs: “Testnote.”

Expected Behavior

Any of the following would make sense:

1. List footnotes at the end of the document, cross referenced from the source site;
2. List footnotes in place, perhaps in parentheses: “Test (FOOTNOTE: note)”;
3. As a temporary measure, at least distinguish a footnote by prepending whitespace.

Actual Behavior

The formatting code is simply stripped and the footnote joined directly to the immediately preceding text.

> use Pod::To::Text;
Nil
> my $pod = EVAL "\$=pod;\n=begin pod\nTestN<note>.\n=end pod";
[Pod::Block::Named{:name("pod")}
  Pod::Block::Para
    Test
    Pod::FormattingCode{:type("N")}
      note
    .
]
> pod2text $pod
Testnote.

Environment

This is Rakudo version 2018.12 built on MoarVM version 2018.12
implementing Perl 6.d.