[perl #73398] [BUG] Array objects in item context in for loops flatten in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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<arnsholt> rakudo: my $i = 0; $i++ for [1,2,3]; say $i;
<p6eval> rakudo d32a0c: OUTPUT«3␤»
<masak> alpha: my $i = 0; $i++ for [1,2,3]; say $i;
<p6eval> alpha 30e0ed: OUTPUT«1␤»
<masak> hm.
<masak> I agree with alpha here.
<moritz_> looks much like a bug
<moritz_> (in master)
<masak> pugs: my $i = 0; $i++ for [1,2,3]; say $i;
<p6eval> pugs: OUTPUT«1␤»
* masak submits rakudobug
<arnsholt> masak: Good. Because it's in the spectest suite =)
<arnsholt> Any suggestions for what is wrong?
<masak> arnsholt: it's flattening the array.
<moritz_> objectref or interpolating flag