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    Can't use string ("source") as a HASH ref while "strict refs" in use a
    +t duck
            line 77 (#1)
        (F) Only hard references are allowed by "strict refs".  Symbolic
    ...
    
    Uncaught exception from user code:
            Can't use string ("source") as a HASH ref while "strict refs" 
    +in use at duck line 77.
    
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            foreach my $var ( keys %elem ) {
                if ( $var->{id} == $form->{"id"} ) {
    
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    #!/usr/bin/perl --
    use strict; use warnings; use Data::Dump qw/ dd /;
    my $form = {
    ...
        }
    }
    __END__