All right, I replaced the contents of js/clone.js
in the main MetaBox plugin. So far, it does work in regards to not *forgetting* the previous box radio settings when cloning. However, one small issue still remains - it ignored the 'std' for the radio on clone.
So in this case, I have 'std' => 'img'
and it's only respected for the first page load but not on clone. Seeing as they are radio
inputs, having one pre-filled is a pretty common feat in my opinion. It's either Image or Video, must be one or the other.
Other than that, it works. Thank you!