[perl #123153] Assigning OUTER::OUTER::.keys() to a constant array generates an error

[via RT]

# New Ticket Created by  Rob Hoelz 
# Please include the string:  [perl #123153]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=123153 >


Example:

    constant @SOMETHING = OUTER::OUTER::.keys();

Results in the following error message:

===SORRY!===
ctxlexpad needs an MVMContext