Args extra_attr gets removed

Hi there,

In get_avatar you can send $args to the get_avatar function. You can set $args[‘extra_attr’] for your extra attributes to the avatar.

$avatar = sprintf(
		"<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>",
		esc_attr( $args['alt'] ),
		esc_url( $url ),
		esc_attr( "$url2x 2x" ),
		esc_attr( join( ' ', $class ) ),
		(int) $args['height'],
		(int) $args['width'],
		$args['extra_attr']
	);

It seems like the function wpua_get_avatar_filter does not take this into account and it seems like there are no ways of adding this to the <img> tag.

https://www.ads-software.com/plugins/wp-user-avatar/