Hi,
It seems to me that I have found bug in the class that extends WP Revision. The ‘save_post’ function in ‘PikList_Revision’ class, saves the post meta data for revision in the wrong way. Look at the screenshot (wp_postmeta table): https://lh3.googleusercontent.com/-URoJFb-LHXA/UKDlm-zLbKI/AAAAAAAAIAQ/HBnfGLQ_fn4/s0/2012-11-12_13-03-39.png
– yellow (post_id=17) – revision’s post meta
– green (post_id=15) – post’s post meta