[perl #78280] [BUG] Null PMC access when giving a variable from a scope that doesn't exist as the default of an 'is rw' parameter and then modifying the parameter in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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<tylercurtis> rakudo: my $b; -> $_ is rw = $OUTER::_ { $_ = 5; $b =
{.say}}(); .say; $_ = 42; $b();
<p6eval> rakudo 377615: OUTPUT«Null PMC access in getprop() [...]
* masak submits rakudobug for tylercurtis Null PMC access
<masak> rakudo: -> $_ is rw = $OUTER::_ { $_ = 5 }()
<p6eval> rakudo 377615: OUTPUT«Null PMC access in getprop() [...]
<masak> rakudo: -> $_ is rw = $FOO::a { $_ = 5 }()
<p6eval> rakudo 377615: OUTPUT«Null PMC access in getprop() [...]
<masak> hihihi