Try changing the product a few times and you should see this. Mightbe some kind of bug in: https://bugzilla.redhat.com/js/productform.js That text usually indicates a dom element or some other object is being incorrectly treated as a string. The dom ends up looking like this: <option value="">[object HTMLSelectElement]</option>
Bug 823339 goes back to the old 'click to refresh' component list option. Upstream's code does not work too well when you have 13,000 components in a single product. *** This bug has been marked as a duplicate of bug 823339 ***