The bug comes when a change has 'Auto Merge'. In the diff view, if 'Parent 1/2' is on the left side, the comments on the right PS will get out to 'Auto Merge' rather than the PS. It's caused by the condition test error of 'getStoredSideFromDisplaySide' in 'CommentManager'. Change-Id: I45459784ace42668d9fac09e337b75d6dae5f5e5