WordPress 3.1.2 Bug: add_theme_support() and video post format registering twice

Thanks to @goldenapples and @kaiser for their guidance. Apparently (for some odd reason) i had two terms registered with post-format-video. Im not sure if the following can be a viable solution to the problem, but i fired up Workbench and deleted both rows in the wp_terms table. I then reloaded the local site, created a post under the video post-format, and finally.. its resolved. One “video” post-format was registered both in the post-format meta box and the wp_terms table.

I’ll leave the intricacies of why this happened and how this worked to the wise.

Either way. I reported this problem to the wp hackers list.

Thanks guys.