[ic] $Tag->data in a UserTag

[Grant]

I'm having trouble getting the data tag to work inside a usertag when
I specify one of the tag's fields with a $variable.  I've tried both
of these:

my $new_variable = $Tag->data({table => 'table_name', field =>
'field_name', key => $variable});

my $new_variable = tag_data('table_name', 'field_name', $variable);

and I've fiddled with ',",q{}, and qq{} quite a bit too.  Does anyone
know how to make this work?

- Grant