[perl #83508] [BUG] Failed ()? captures should be Nil in Rakudo (nqp-rx)

[Carl Mäsak]

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<dalek> specs: a56ffc3 | larry++ | S (2 files):
<dalek> specs: make ?/* semantics consistently Nil/()
<dalek> specs: review: https://github.com/perl6/specs/commit/a56ffc33ac
<TimToady> rakudo: 'x' ~~ /(y)? (z)*/; say $0.defined, $1.defined;
<p6eval> rakudo 684fdf: OUTPUT«Bool::TrueBool::True␤»
<TimToady> that should be False True
<TimToady> by the new rules
* masak submits rakudobug
<TimToady> and actually, the first was supposed to be False already by
the old spec