numpy/numpy — pull request #2746 by GaelVaroquaux (2012-11-15 10:35:30+00:00)
Title: FIX: base always refers to the original subclass

Closes #470

The use case is that if b is a memmap, 'np.asarray(b).base' should be a
memmap, and thus we put is to b in such a situation.