Astra_Customizer::prepare_group_configs( object $wp_customize )

		public function prepare_group_configs( $wp_customize ) {

			if ( $wp_customize->selective_refresh->is_render_partials_request() ) {
				return;
			}

			$configurations = $this->get_customizer_configurations();
			$defaults       = $this->get_astra_customizer_configuration_defaults();

			foreach ( $configurations as $key => $configuration ) {
				$config = wp_parse_args( $configuration, $defaults );
				if ( 'sub-control' === $config['type'] ) {
					unset( $config['type'] );
					$parent = astra_get_prop( $config, 'parent' );
					$tab    = astra_get_prop( $config, 'tab' );

					if ( empty( self::$group_configs[ $parent ] ) ) {
						self::$group_configs[ $parent ] = array();
					}

					if ( array_key_exists( 'tab', $config ) ) {
						self::$group_configs[ $parent ]['tabs'][ $tab ][] = $config;
					} else {
						self::$group_configs[ $parent ][] = $config;
					}
				}
			}
		}