Directly calling parameterized tests fails

[ThrawnCA]

With nose-parameterized version 0.3.3, we were able to directly call a parameterized test, supplying an appropriate list of parameters, from another test (eg after doing some other setup). When updating to 0.6.0, however, this broke, complaining that it was trying to access a property of None (I haven't tracked down the exact version that changed it).

It's not all that hard to resolve it, by refactoring the tests to extract a helper function that takes all the parameters, then just passing them through from the parameterized test. It's unfortunate, though, that this use case previously worked and no longer does. Is it still feasible to make it work, or is it no longer possible?