public function setup( $post ) {
		parent::setup( $post );

		if ( ! $this->is_valid() ) {
			return;
		}

		if ( $this->ID === 5 ) {
			$test = '1';
		}

		if ( ! isset( $this->data_version ) ) {
			$this->data_version = (int) $this->get_meta( 'popup_theme_data_version' );

			if ( ! $this->data_version ) {
				$theme_overlay_v1 = $this->get_meta( 'popup_theme_overlay_background_color' );
				$theme_overlay_v2 = $this->get_meta( 'popup_theme_overlay' );

				// If there are existing settings set the data version to 1/2 so they can be updated.
				// Otherwise set to the current version as this is a new popup.
				if ( ! empty( $theme_overlay_v1 ) ) {
					$this->data_version = 1;
				} else if ( ! empty( $theme_overlay_v2 ) && is_array( $theme_overlay_v2 ) ) {
					$this->data_version = 2;
				} else {
					$this->data_version = $this->model_version;
				}

				$this->update_meta( 'popup_theme_data_version', $this->data_version );
			}
		}

		if ( $this->data_version < $this->model_version && pum_passive_theme_upgrades_enabled() ) {
			/**
			 * Process passive settings migration as each popup is loaded. The will only run each migration routine once for each popup.
			 */
			$this->passive_migration();
		}
	}