MigrateBrightCoveFieldHandler is returning no values

Modules: Migrate 7.x-2.7 , Brightcove Video Connect 7.x-6.0-beta2
File : brightcove_field.migrate.inc

The problem:

if (isset($values['arguments'])) {
$arguments = array_filter($values['arguments']);
unset($values['arguments']);
}

This results in $values , which only has "arguments" as an element, becoming empty.

Later , we are iterating through this via

foreach ($values as $value)

which builds up a $return array , populated by the brightcove_id and player values. However, this is never executed , because of the "unset" above.

Patch for this attached.