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$shaper_config_new = [];
$nested_queue_found = false;
foreach (config_get_path('dnshaper/queue', []) as $queue) {
    if (isset($queue['name'])) {
        $shaper_config_new[strtolower($queue['name'])] = $queue;
        continue;
    }
    foreach ($queue as $nested_queue) {
        if (isset($nested_queue['name'])) {
            $nested_queue_found = true;
            // Don't override queues at the correct path.
            if (!isset($shaper_config_new[strtolower($nested_queue['name'])])) {
                $shaper_config_new[strtolower($nested_queue['name'])] = $nested_queue;
            }
        }
    }
}
if ($nested_queue_found) {
    $queue_number = 0;
    foreach ($shaper_config_new as &$queue_config) {
        $queue_config['number'] = ++$queue_number;
    }
    unset($queue_config);
    config_set_path('dnshaper/queue', array_values($shaper_config_new));
    file_notice('Traffic Shaper', gettext('Configuration items for ' .
        'Traffic Shaper Limiters were found at an invalid location ' .
        'and have been regenerated.')
    );
    write_config('Limiters configuration regenerated.');
}