When setting defaults for a resource type R, the short form works:
but not the long form:
This problem is due to the static transformation of a resource expression
since the two forms (override and default) have different rules than a regular resource expression.
Ideally I would like to only have one form and require that defaults have a title of literal default, and that overrides specify the title of the resource that is being overridden. This would alleviate much grammar pain.