Font Size and Line Height are not saved in Array in Typography filed - v3.0.10

[dariodev]

Typography filed in customizer does not show default values for Font Size and Line Height. When I enter values in these fields the change is instantly visible in the Customizer, but after Save & Publish the values are not saved.

Version used latest Develop branch
Using theme_mods

Here is example field:

Kirki::add_field( 'theme_config', array(
	'type'        => 'typography',
	'settings'    => 'nav_typography',
	'section'     => 'menu_typography',
	'priority'    => 25,
	'default'     => array(
		'font-family'    => 'Roboto',
		'line-height'    => '1.4',
		'variant'        => '500',
		'subsets'        => array( 'latin' ),
		'text-transform' => 'none',
		'letter-spacing' => '0',
		'font-size'      => '16px',
	),
	'transport' => 'auto',
	'output' => array(
		array(
			'element' => '.sm-simple a',
		),
	),
) );

and here is the array that is saved after all fields are saved (tried many times):

Array ( [font-family] => Roboto [variant] => 500 [subsets] => Array ( [0] => latin ) [text-transform] => uppercase [letter-spacing] => 1px [font-weight] => 500 [font-style] => normal ) 

EDIT: I tried with Kirki added in the theme and activated as plugin, result is the same for both ways - v3.0.10 does not save those values.
After that I wanted to check how the latest stable version from wp.org 3.0.9 works. With this version I also tried both ways, activated as plugin and bundled in theme - this version works both ways.

[aristath]

fixed.

[dariodev]

Thank you, sir :)