Ah, but you're repeating the sequential access behavior that hides the bug. Try instead reversing the access order and you'll see the "high water mark" bug. 
say @foo[2].(3,5);
say @foo[1].(3,5);
say @foo[0].(3,5);

[download]
...produces... 
10
10
10

[download]

In reply to Re^5: Perl6 lazy list of code blocks by aes
in thread Perl6 lazy list of code blocks by aes

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