Default Subtitle Track not updated

Hi,
In the 7.x-3.x-dev version of the module, under the admin/config/media/videojs settings and as well as in the Manage Display -> field settings,
the "Default Subtitle Track" field cannot be changed/updated. Whichever option is selected, after saving it always goes back to "No default track".

After going through the module files, found that in the includes/videojs.utility.inc file in line 65, it is
'#default_value' => !empty($values['select']) ? $values['select'] : NULL,
instead of
'#default_value' => !empty($values['defaulttrack']) ? $values['defaulttrack'] : NULL,
Once that has been changed it works fine.
Just wanted to bring it to notice of the maintainer.

Thanks for the amazing module.