Immutable separator to join() doesn't work

[Daniel Murphy]

"Jonathan M Davis" <jmdavisProg at gmx.com> wrote in message 
news:mailman.1552.1310429761.14074.digitalmars-d at puremagic.com...
> This enhancement request would make the situation with immutable and const
> arrays so that they're much more in line with mutable container types and
> static arrays:
>
> http://d.puremagic.com/issues/show_bug.cgi?id=6289
>
> - Jonathan M Davis

WAIT WHAT?  That doesn't work?!?