WordPress › Custom Field Revisions

Enables custom fields in revisions and makes preview work as expected when using custom fields.

This plugin enables custom fields in revisions and makes preview work as expected when using custom fields (Means that custom fields are NOT saved to original post when clicking that Preview button).

Features

Saves revisions of the values in your custom fields (created by other plugins or native)
The fields are displayed on revision screen along with Title, Content, Excerpt
Using restore on the revision screen also restores the defined fields
Has various options to define which fields are saved in revisions
BONUS: When previewing a post/page the plugin prevents the fields being saved to the original post.