With PHP 8.2 we get:
Deprecated function: Creation of dynamic property Drupal\entityqueue\Plugin\views\relationship\EntityQueueRelationship::$first_alias is deprecated in Drupal\entityqueue\Plugin\views\relationship\EntityQueueRelationship->query() (line 200 of web/modules/contrib/entityqueue/src/Plugin/views/relationship/EntityQueueRelationship.php)
#0 web/modules/contrib/entityqueue/src/Plugin/views/relationship/EntityQueueRelationship.php(200): Drupal\error_page\ErrorPageErrorHandler::handleError()
Closed: duplicate
1.0
Code
The issue particularly affects sites running on PHP version 8.2.0 or later.
As I see this is a public property. Probably we should:
* Declare as public property, to solve the PHP 8.2 warning, and deprecated it
* Create a new firstAlias protected property
* Create getter/setter and replace usages within module
* Create a CR