[perl #74336] [BUG] List assignment to an array inside a signature produces a double array in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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<masak> rakudo: my @a = 1,2,3; my (@c) = @a; say @c.perl
<p6eval> rakudo cb4521: OUTPUT«[[1, 2, 3]]␤»
<masak> alpha: my @a = 1,2,3; my (@c) = @a; say @c.perl
<p6eval> alpha 30e0ed: OUTPUT«[1, 2, 3]␤»
<masak> rakudo: my @a = 1,2,3; my @c = @a; say @c.perl
<p6eval> rakudo cb4521: OUTPUT«[1, 2, 3]␤»
* masak submits rakudobug
* masak wonders if this is related to the issue with double arrays in attributes