Custom logo with no args causing PHP warnings

Hi,

I’m testing the new WP4.5 development releases. Since current 4.5-RC1-37079 update I get these PHP warnings:

Warning: array_intersect_key(): Argument #1 is not an array in /srv/www/wordpress-default/wp-includes/theme.php on line 1570

Warning: Cannot use a scalar value as an array in /srv/www/wordpress-default/wp-includes/theme.php on line 1570

Warning: Cannot use a scalar value as an array in /srv/www/wordpress-default/wp-includes/theme.php on line 1574

Warning: Cannot use a scalar value as an array in /srv/www/wordpress-default/wp-includes/theme.php on line 1575

I was able to trace these down to add_theme_support( 'custom-logo' );. When I use it in plain with no additional args, the PHP warnings above are thrown.

If I set custom logo with args, it works fine:

add_theme_support( 'custom-logo', array(
	'height'      => 160,
	'width'       => 160,
	'flex-height' => true,
	'flex-width'  => true,
) );

Is it required to set the args? Shouldn’t it work without the args? What happens if no args are passed, will it take the full size of the uploaded image?

Thanks for addressing this issue!

Regards,

Oliver