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

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

		// REVIEW Does this need to be here or somewhere else like get_meta/get_setting?
		if ( ! isset( $this->data_version ) ) {
			$this->data_version = (int) $this->get_meta( 'data_version' );

			if ( ! $this->data_version ) {
				$theme            = $this->get_meta( 'popup_theme' );
				$display_settings = $this->get_meta( 'popup_display' );

				// If there are existing settings set the data version to 2 so they can be updated.
				// Otherwise set to the current version as this is a new popup.
				$is_v2              = ( ! empty( $display_settings ) && is_array( $display_settings ) ) || $theme > 0;
				$this->data_version = $is_v2 ? 2 : $this->model_version;

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

		if ( $this->data_version < $this->model_version && pum_passive_popup_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();
		}
	}