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This old semidocumented trick was only needed because of lack of action context. It is no longer needed. Only e.g. externaleditor and nbscript used it, I think. Reimpl it in NodeAction to use action context, and make it print a runtime warning so people will know to change it.
This should be made part of the #27868 fix, I guess, whenever you get the chance.
Assigned to new owner.
Sure, consider deprecated.