message: take into account lazy loading when enlarging avatar
diff: @@ -598,7 +598,7 @@ module.exports = withMatrixClient(React.createClass({
  onMemberAvatarClick: function() {
  const member = this.props.member;
  - const avatarUrl = member.user ? member.user.avatarUrl : member.events.member.getContent().avatar_url;
  + const avatarUrl = member.getMxcAvatarUrl();
  if (!avatarUrl) return;
  const httpUrl = this.props.matrixClient.mxcUrlToHttp(avatarUrl);
  