Andrew Nacin

@CahnEmily You should register your old name and point people to the new one. #cahnemily #lastfirst #byersalex

@markoheijnen @unserkaiser @Rarst With @nikolayb and @obenland at baggage claim 15.

Priuses can run out of gas too, as evidenced by today's very eventful and stressful cab ride to IAD. #wceu

On the same flight as @nikolayb to WordCamp Europe. Not even the first time this has happened, pretty sure.

Off to Amsterdam! Last time, my girlfriend had to rush my passport to the airport. One of many reasons why I married @kerikaeindc. :) #wceu

#wceu here I come! (@ Washington Dulles International Airport (IAD) - @dulles_airport w/ @nikolayb) http://4sq.com/15LcDF0 

@jbenton It needs another ) at the end there before return; Keep your existing DOING_AUTOSAVE check, no harm.

@jbenton If you switch to using the post ID passed to your function, you'll also solve this particular problem.

@jbenton So, technically new in 3.6. But we weren't really sold on a fix in 3.6.1, and it was still going to break in many other situations.

@jbenton Yep. That's one of the other possible causes. As discussed in depth here: http://core.trac.wordpress.org/ticket/25023 .

@jbenton It's actually not autosave that's causing the fields to go away. Possibly Quick Edit; many other possible causes as well.

@jbenton Then, you can replace global $post; with $post = get_post( $post_id ); (This probably isn't your bug, just suggesting cleanups.)

@jbenton It's an action, no need to return $post_id. Also, $post_id isn't set there. The first parameter passed to the function is $post_id.

@jbenton Try this. if ( ! isset( $_POST['nil_post_tag'] ) return; There are more thorough ways to do this, but that will solve your problems

@jbenton Send me a zip of your theme and any custom plugins (wherever this meta is being saved) and I'll point it out for you.

@jbenton There's an update_post_meta() call on a save_post hook that isn't bothering to check if $_POST['something'] is set before updating.

@FootSmart http://wordpress.org/support/  or look to a company like Sucuri.