Back compat $_REQUEST['post_id'] for media XHR requests
|Reported by:||nacin||Owned by:||ryan|
Description (last modified by nacin)
query-attachments, save-attachments, and save-attachments-compat should all pass back 'post_id', for consistency with the old media-upload.php dialog, as plugins may be doing $_REQUEST['post_id'] checks in conjunction with parse_query, save_post, attachment_fields_to_save, or other filters.
We should consider also calling set_current_screen( 'media-upload' ) for these three requests, or for at least query-attachments, to allow the current screen object to be accurate. It's kind of hacky, and doesn't handle $pagenow, but it is something to consider.