textarea control is broken with HTML content

[tutv]

Issue description:

If I insert an HTML content, example:

<a href="#">Hello link</a>

After saving, content is changed:

Version used:

3.0.18

Using theme_mods or options?

theme_mods

Code to reproduce the issue (config + field(s))

Kirki::add_field( 'theme_config_id', array(
	'type'     => 'textarea',
	'settings' => 'my_setting',
	'label'    => __( 'Textarea Control', 'textdomain' ),
	'section'  => 'section_id',
	'default'  => '<a href="#">Hello link</a>',
	'priority' => 10,
) );