From @masak

<masak> rakudo​: $_ = "open"; my @​verbs = "open", "close"; say $_ ~~ /^ @​verbs/
<p6eval> rakudo 922500​: OUTPUT«␤»
<masak> rakudo​: $_ = "open"; my @​verbs = "open"; say $_ ~~ /^ @​verbs/
<p6eval> rakudo 922500​: OUTPUT«open␤»
<masak> ah, seems array interpolation isn't correctly implemented
after all. (the array stringifies instead of acting like any(@​verbs)).
that's too bad. [11​:38]
<moritz> rakudo​: $_ = "open"; my @​verbs = <open close>; say $_ ~~ /^ @​verbs/
<p6eval> rakudo 922500​: OUTPUT«␤»
<masak> maybe an appropriate change to src/Perl6/Actions.pm​:3109 would
fix things.
<masak> huh. that's odd.
<masak> looking at the commit for that area of code, the !MAKE_REGEX
routine in src/glue/regex.pir seems to be *specifically* made for
handling arrays interpolated into regexes.
<masak> but I don't see it applying any infix​:<|> semantics.
<masak> S05​:1139​: "An interpolated array [...] is matched as if it
were an alternation of its elements."
* masak submits rakudobug

From @FROGGS

Patch​:
rakudo/rakudo@8e6fa0b

Test​:
Raku/roast@e452149

The RT System itself - Status changed from 'new' to 'open'

@FROGGS - Status changed from 'open' to 'resolved'