Topic: $dummy, $dummy1,2,3 listed, not used, not available
$dummy is declared with a default value of false in the function start_form() in includes/ui/ui_controls.inc and in reporting/includes/class.pdf.inc as null in the function ellipse() but not used inside the function and not assigned consistently anywhere with any valid values.
This results in the module extensions permissions not being read correctly as in the case of the report generator.