The problem is that the change for "new" behavior (throw exception instead of return unchanged query) was only done in _processWhereIn() but not cascaded to andWhereIn() and orWhereIn() (another example we should avoid code duplication).
The patch is simple, but it causes Doctrine_Ticket_1558_TestCase to fail. Indeed that (old) test expects the "old" behavior (return unchanged query, don't throw exception)... So the 2 fixes are incompatible, you'll have to choose :/
I still attach a new test case and 2 versions of a patch (the first one just applies changes of _processWhereIn also to the 2 other functions but adds more duplicate code, the second is a little refactored and seems better to me).