Cacher is the code snippet organizer for pro developers

/**
 * Gravity Wiz // Gravity Forms // Force Field with Default Value to Refresh on Save & Continue
 */
add_action( 'gform_submission_values_pre_save', function( $values, $form ) {
  
  // update "12" to the ID of your desired form
  if( $form['id'] == 12 ) {
	  // update "4" to the field ID that should be refreshed on save & continue
	  $values[4] = false;
  }

	return $values;
}, 10, 2 );