public void RevisionStart(IRevisionProperties revisionInfo)
        {
            if (revisionInfo.RevisionType == RevisionType.FeedbackAdded ||
                revisionInfo.RevisionType == RevisionType.FeedbackDeleted ||
                revisionInfo.RevisionType == RevisionType.FeedbackComment)
            {
                _bufferContent = false;
                if (revisionInfo.RevisionType == RevisionType.FeedbackDeleted)
                {
                    _tqaDeletion = true;
                }
            }

            if (_bufferContent)
            {
                _buffer.RevisionStart(revisionInfo);
            }
        }