I appear to be suffering a similar issue, but the fixes are not working for me. (website http://www.imageworkshop.com)
I am using Yoast WordPress SEO plugin, and also have Jetpack installed.
I have attempted to disable the OpenGraph produced by Jetpack using the code in my fucntions.php, but this does not appear to have removed the values (or at least I still have a double up, but perhaps these are from another plugin?)
add_filter( 'jetpack_enable_open_graph', '__return_false', 99 );
When I test my site with Facebook debug tools, it is still complaining about multiple OpenGraph values.
https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fwww.imageworkshop.com%2F
Have I missed something here?