Compare Revision

I got this massages when I click Compare Revision @ history

Don't let this happen again. Go Back. Self-comparison detected.
Initiating infinite loop eschewal protocol.
Self destruct in... 3
Wake up, ...The Matrix has you...Follow the white rabbit.

The same thing happened this web that using Wordpress Wiki

Can help me to tell how to fix this problem?

Thanks for the help
Romi Mardela