Totem links to non-free plugins when opening wmap (WMA) file

When opening a WMA pro file in Totem, it asks to search for a codec but does not find one. The button labelled "Buy Licensed Plug-ins..." is a link to Canonical's shop page for non-free codecs: https://shop.canonical.com/index.php?cPath=25

Test files: http://samples.mplayerhq.hu/A-codecs/WMA9/wmapro/

See attached screen shot or http://omploader.org/vM2NjNw/trisquel-install-media-plug-ins-non-free-bug.png

This link should be removed because it recommends non-free software.