[perl #96430] Buf() ~ Buf() stringify output instead of creating Buf()

[via RT]

# New Ticket Created by  Paweł Pabian 
# Please include the string:  [perl #96430]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=96430 >


According to spec:

"Concatenating two compatible Bufs produces an object of the most specific type 
possible"

However:

$ perl6 -e 'my $x = Buf.new([:16<02>]) ~ Buf.new([:16<00>]); $x.WHAT.say'
Str()

While the most specific type is Buf().
10:25

10:25
moritz
bbkr1: that's worth a bug report