Continuations fail to revert all registers to the correct state

[arnsholt]

When the attached code is run, it outputs "foo\nfoo\n". The second foo should, in my opinion not be there. When the continuation to backtrack in choose() is created, val has not yet been assigned a value, and since choose() doesn't return a value on the backtrack (an intentional bug, to expose this behaviour) it should be in the same uninitialised state it was when the continuation was created.

See also discussion on #parrot:  http://irclog.perlgeek.de/parrot/2010-03-30#i_2173883 and onwards (continues across in the next day's logs).

[bacek]

At r45769 parrot show

foo
bar
Done.

Is it expected output?

-- Bacek

[bacek]

No response in 4 month. I'm going to declare current behaviour as correct and expected. Closing ticket.