T200570: Make ApiEditPage and ApiStashEdit API modules aware of MCR

Phabricator Link	T200570
Status	open
Priority	normal (orange)
Author	[1]
Owner	Anomie (Brad Jorsch)
Projects	Multi-Content-Revisions (Tech Debt) CPT Initiatives (MCR)
Subtasks	T174033: Refactor EditPage to allow multiple slots to be edited atomically &#91 MCR&#93
Parent Tasks	T174032: Make relevant API modules aware of MCR
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