![]() We see in #27387 that a call to `polymorphic_path` will cause duplicate SELECT route calls for each merge request in a milestone. This happens because calling `project.namespace.becomes(Namespace)` will instantiate a new instance of a Namespace for each merge request, which causes a N+1 query on the routes table. This change caches the state of the route by the specific class and ID, which dramatically eliminates duplicate work. |
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archive.md |