Hello everyone. ^_^ Long-time player, first-time poster. Unfortunately, I can CONFIRM this bug.
http://tinyurl.com/6cq9pgy(
http://tinyurl.com/6cq9pgy)
My HP hit zero when the AI Catapult'd an Elite Armagio, doing EXACTLY enough damage to set me to zero HP (the AI had more than half of it's health left). The battle continued on, the AI catapulting everything it played.
To add a little extra, I used my Improved Heal to get my HP to 20 (nothing happened), and ended the game. I earned twenty Electrum as a result.
EDIT
Can't get the 'img' tags to work. Using a link for now.