Product meta data update bugfix

git-svn-id: https://plugins.svn.wordpress.org/dutycalculator-calculate-charge-import-duty-taxes-at-checkout/trunk@876644 b8457f37-d9ea-0310-8a92-e5e31aec5664
Product meta data update bugfix

git-svn-id: https://plugins.svn.wordpress.org/dutycalculator-calculate-charge-import-duty-taxes-at-checkout/trunk@876645 b8457f37-d9ea-0310-8a92-e5e31aec5664