id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
22080,add_theme_support should merge post-thumbnail post types by default (currently stomps),alexkingorg,,"As documented in the Codex:

http://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails

you can pass a second param to `add_theme_support( 'post-thumbnails' )` to specify the post types you want support enabled for. I expected any post types I passed in to be added to the currently specified post types, instead the passed value stomps the existing value. This means that if you create plugin that registers a post type and enables post-thumbnails for it, you need to write code like this:

https://gist.github.com/3822786

instead of a simple:

`add_theme_support( 'post-thumbnails', array( 'my-new-post-type' ) );`

The latter makes more sense to me, and I think it's likely other devs might make the same mistake and accidentally stomp on the previous value for post-thumbnails.

The attached patch enables a merge or stomp behavior for post-thumbnails. It defaults to ""merge"". Passing a `bool true` as a 3rd param will cause the second param to replace the existing value (current behavior).",enhancement,new,normal,Future Release,Post Thumbnails,2.9,normal,,has-patch 3.6-early,nacin info@… lightningspirit@… ben@… andrew@…