Back to topic, I have prepared a Picard patch that would handle copy and pasting the code with this naughty left-to-right control character like this:
The \u200e is the hex representation for this character. I guess that’s easy to spot. It also allows one to be more explicit when inserting characters, that might be great for the Unicode crazy people here. E.g. want a thin space between disc number and tracknumber?
%discnumber%\u2009%tracknumber%
But that change means I need to update the syntax highlighting for the forums also 