Edits don't show up when previewing a post created by another author

[cojennin]

See issue here: http://wordpress.org/support/topic/cant-preview-unsaved-changes-on-another-authors-post

To recreate:

1. User 1 creates a post and saves it
2. User 2 edits the post User 1 created and saved and goes to preview it
3. The changes User 2 made do not show up

[cojennin]

It looks like one of the issues with previewing posts with custom statuses has been fixed in WordPress core. It appears the filter 'fix_preview_link_part_one' is no longer needed. Will test on older versions of WordPress to confirm that this is the issue.

[cojennin]

This should be with the following commit: ac462ad