Unit promotion class and Policy / Building

[tom3]

Version: 1.0.0.26

(1) Policy
Some policy cards including Agoge boost unit production.
The Policies.xml, however, doesn't include PROMOTION_CLASS_ANTI_CAVALRY and PROMOTION_CLASS_SIEGE.
cf.
Sid Meier's Civilization VI\Base\Assets\Gameplay\Data\Policies.xml

This means Anti-Cavarly units and Siege units don't receive production bonus, right?

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(2) Building
The description of the Stable says "+25% combat experience for all cavalry class units trained in this city".
I, however, found these lines in the Buildings.xml.

<RequirementSetId>STABLE_UNIT_REQUIREMENTS</RequirementSetId>
<RequirementId>REQUIREMENT_UNIT_IS_SIEGE</RequirementId>

cf.
Sid Meier's Civilization VI\Base\Assets\Gameplay\Data\Buildings.xml

It seems to me that Siege units receive XP bonus from not Barracks but Stables.