[isabelle] Isabelle2013-1-RC3: setup_lifting raises TYPE

When I try to setup lifting for a generic type copy using setup_lifting, I get an exception TYPE. Here's a minimal example:

theory Copy imports Main begin
typedef 'a copy = "UNIV :: 'a set" ..
setup_lifting type_definition_copy

Is this on purpose (then I would expect a sensible error message) or a limitation?


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