Video file uploaded as oga

To the best of my knowledge this is the first false positive for the oga extension. Dropping here nonetheless: https://commons.wikimedia.org/w/index.php?title=File%3ANew-Caledonian-Crows-Rapidly-Solve-a-Collaborative-Problem-without-Cooperative-Cognition-pone.0133253.s001.ogv&type=revision&diff=172642392&oldid=170974965
