Python3's super and comprehensions -> TypeError?

Using python3's super in a comprehension seems to always result in TypeError: super(type, obj): obj must be an instance or subtype of type (but using python 2's super does work as expected)

class A(object):
    def __repr__(self):
         return "hi!"  

class B(A):
    def __repr__(self):
         return "".join(super().__repr__() for i in range(2))  

repr(B())
#output: <repr(<__main__.B at 0x7f70cf36fcc0>) failed: TypeError: super(type, obj): obj must be an instance or subtype of type>

class C(A):
    def __repr__(self):
        s = ''
        for i in range(4):
            s += super().__repr__()
        return s     

repr(C())
#output: hi!hi!hi!hi!

class D(A):
    def __repr__(self):
        return "".join(super(D,self).__repr__() for i in range(4))

repr(D())
#output: hi!hi!hi!hi!

So, why does new super() fail in generator comprehensions?

Addendum:

In [28]: class E(A):
   ....:     def __repr__(self):
   ....:         def inner():
   ....:             print(repr(__class__))
   ....:         inner()
   ....:         return ''
In [29]: repr(E())
<class '__main__.E'>
Out[29]: ''

In [30]: class F(A):
   ....:     def __repr__(self):
   ....:         return "".join([super().__repr__() for i in range(4)])
   ....:     

In [31]: repr(F())

TypeError: super(type, obj): obj must be an instance or subtype of type

via Chebli Mohamed