Minor bug fix

git-svn-id: https://plugins.svn.wordpress.org/marketpress-product-gallery/trunk@957909 b8457f37-d9ea-0310-8a92-e5e31aec5664
Stable

git-svn-id: https://plugins.svn.wordpress.org/marketpress-product-gallery/trunk@957911 b8457f37-d9ea-0310-8a92-e5e31aec5664