Error in generated documentation for extensions of namespaced classes

This looks to be a general problem in how the documentation is being generated. It seems like it is interpreting " extends \Exception" like " extends Exception". This looks like it apples to all extensions of namespaced classes - eg StatementInterface reads:

interface \Drupal\Core\Database\StatementInterface extends \Drupal\Core\Database\Traversable

but the code is

interface StatementInterface extends \Traversable {

The doc page for TempStoreException says

class \Drupal\Core\TempStore\TempStoreException extends \Drupal\Core\TempStore\Exception

I think that should be just \Exception.

class TempStoreException extends \Exception {}