If it's logged, it can be added. Is that the exact sentence? Does the log show who's bloodletter the enemy suffered the damage from?

Nexxus, a zip file with log files in the appropriate language would be a good start

As for the issue with double logging, I'm unable to reproduce it for the life of me If one of you who experience this problem could send me some log files from a session where this happens to you, I'd be very grateful!