Incorrect element property info stunts Entity API usefulness

I originally posted this here, but since that issue was marked closed a long time ago, I'm opening a fresh issue for the current module version.

Basically, the Product Option module has a typo in its hook_entity_property_info() implementation that keeps it from working properly with the Entity API in some cases (like fetching Commerce Option entities by Line Item ID).

Specifically, commerce_option_entity_property_info() sets "schema_field" instead of "schema field" (check the hook doc here) for the "line_item_id", "created", and "changed" properties (though it's set correctly for the first few properties for some reason):

/**
 * Implements hook_entity_property_info().
 */
function commerce_option_entity_property_info() {
  $info = array();

  $info['commerce_option']['properties'] = array(
    //...
    'product_id' => array(
      'type' => 'integer',
      'label' => t('Product id'),
      'schema field' => 'product_id',
      'required' => TRUE,
    ),
    'line_item_id' => array(
      'type' => 'integer',
      'label' => t('Line item id'),
      'schema_field' => 'line_item_id',
      'setter callback' => 'entity_property_verbatim_set',
      'required' => TRUE,
    ),
    // ...
  );

Where I ran into this was with Rules. Rules can't fetch Commerce Options by their "line_item_id" property, even though that option is available in the Rules UI. Commerce does the fetch using entity_property_query(), which determines that the entity property isn't queryable since it doesn't have a "schema field" element and subsequently returns NULL. Check out the second line of the function in entity.property.inc:

/**
 * Queries for entities having the given property value.
 *
 * @param $entity_type
 *   The type of the entity.
 * @param $property
 *   The name of the property to query for.
 * @param $value
 *   A single property value or an array of possible values to query for.
 * @param $limit
 *   Limit the numer of results. Defaults to 30.
 *
 * @return
 *   An array of entity ids or NULL if there is no information how to query for
 *   the given property.
 */
function entity_property_query($entity_type, $property, $value, $limit = 30) {
  $properties = entity_get_all_property_info($entity_type);
  $info = $properties[$property] + array('type' => 'text', 'queryable' => !empty($properties[$property]['schema field']));
  // ...
}

I think if we just fix the commerce_option_entity_property_info() hook implementation to use "schema field" instead of "schema_field", everything will be just fine.