MODULES key not found for `@template`

[BeastyBlacksmith]

maybe I'm using it wrong, but

module Foo

@template MODULES = Foo
end

resultes in

ERROR: LoadError: KeyError: key :MODULES not found

[MichaelHatherly]

From what I recall it's meant to work in the following way: @template MODULES = "..." defines a template in the top module that can be used in any submodules by using @template MODULES = ParentModule. Using it to refer to itself can't work. That's what I vaguely remember it being meant to do anyway.