https://github.com/pandas-dev/pandas/blob/master/pandas/core/ops.py#L1030

 # we may need to manually # broadcast a 1 element array if yrav.shape != mask.shape: yrav = np.empty(mask.shape, dtype=yrav.dtype) yrav.fill(yrav.item()) 

Getting yrav.item() in the last line here after re-defining yrav in the previous line seems like it is likely getting the wrong thing. Is this intentional?