wp-includes/customize/class-wp-customize-nav-menu-item-setting.php:269Prepares the value for editing on the client.
array|false public function js_value() { $value = parent::js_value(); if ( is_array( $value ) && isset( $value['original_title'] ) ) { // Decode entities for the sake of displaying the original title as a placeholder. $value['original_title'] = html_entity_decode( $value['original_title'], ENT_QUOTES, get_bloginfo( 'charset' ) ); } return $value; }Introduced in 6.8.3. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.