Automatically submits form with Opera

This module is very nice especially for UGC sites. There’s a problem with Opera, however and that is when users hit “Enter” in the tagging field to register their terms, the node creation form automatically submits the form. The tags do register with the nodes but it should not submit the form. It does this only when users press “Enter.” When the user chooses to click on the “+” icon, it doesn’t do this. Again, only with Opera.