Locate the line:
Add the following block above:
if (($p = @$options['simple_product']) && @$p['product_id'] == $this->getId()) {
unset($options['simple_product']);
}
Locate the line:
Add the following block above:
if (($p = @$options['simple_product']) && @$p['product_id'] == $this->getId()) {
unset($options['simple_product']);
}