Damage Report Bug

EDIT: This looks like a bug specific to Yorick. Other threads reporting damage calculation issues for other champions, but there's a Yorick on the team. Most likely due to damage calculations on the ultimate.

Links to other reports (sorry for the duplicate report): http://boards.na.leagueoflegends.com/en/c/bug-report/6qun5UAn-post-game-lobby-damage-numbers-crazy

http://boards.na.leagueoflegends.com/en/c/bug-report/836Ol5Fs-yorick-post-game-lobby-bug

http://boards.na.leagueoflegends.com/en/c/bug-report/Tlib7M26-yorick-damage-bug-after-game

http://boards.na.leagueoflegends.com/en/c/bug-report/FoZmMhYR-yorick-ultimate-bug