[perl #126739] [BUG] HyperSeq erroneously returns empty list

[via RT]

# New Ticket Created by  Larry Wall 
# Please include the string:  [perl #126739]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=126739 >


00:29     b2gills     m: say race map -*, ^100
00:29     camelia     rakudo-moar : OUTPUT«HyperSeq.new␤»
00:30         Psyche^_ joined #perl6
00:34     TimToady     m: say eager race map -*, ^100
00:34     camelia     rakudo-moar : OUTPUT«()␤»
00:34     TimToady     m: say first * %% 7, race map -*, ^100
00:34     camelia     rakudo-moar : OUTPUT«Nil␤»
00:34     TimToady     m: .say for race map -*, ^100
00:34     camelia     rakudo-moar :
OUTPUT«0␤-1␤-2␤-3␤-4␤-5␤-6␤-7␤-64␤-8␤-9␤-65␤-6​6␤-10␤-67␤-11␤-68␤-12␤-13␤-69␤-14␤-70␤-15␤-71␤​-16␤-17␤-72␤-18␤-19␤-73␤-20␤-21␤-74␤-22␤-75␤-2​3␤-76␤-24␤-25␤-77␤-26␤-78␤-27␤-79␤-28␤-80…»
00:35     TimToady     seems some things aren't hooked up to HyperSeq quite
right, just yet

and

18:47     Quom_     Did anyone else notice this issue:
18:47         m: sub f($a) {$a**2}; say [+] (^100).hyper.map(&f)
18:47     camelia     rakudo-moar 51d695: OUTPUT«328350␤»
18:47     Quom_     m: multi f($a) {$a**2}; say [+] (^100).hyper.map(&f)
18:47     camelia     rakudo-moar 51d695: OUTPUT«0␤»
18:47     Quom_     m: multi f($a) {$a**2}; say [+] (^100).map(&f)
18:47     camelia     rakudo-moar 51d695: OUTPUT«328350␤»