[perl #74352] [BUG] Strange type object-related error when doing a junction in a subtype with the same nominal check several times in Rakudo

[Carl Mäsak]

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<masak> rakudo: subset A of Array; subset B of A; subset C of A;
subset D of A where B & C; say [] ~~ D
<p6eval> rakudo 3b5a79: OUTPUT«Type objects are abstract and have no
attributes, but you tried to access [...]
* masak submits rakudobug
<masak> it appears to be a combination of doing the nominal A check
multiple times, and the &
<masak> rakudo: subset A of Array; subset B of A; subset C of Any;
subset D of A where B & C; say [] ~~ D
<p6eval> rakudo 3b5a79: OUTPUT«Type objects are abstract and have no
attributes, but you tried to access [...]
<masak> rakudo: subset A of Array; subset B of Any; subset C of Any;
subset D of A where B & C; say [] ~~ D
<p6eval> rakudo 3b5a79: OUTPUT«1␤»

Also, 'tried to access' what exactly?