astropy: HDUList Cannot Handle EXTVER

I am trying to create a multi extension .fits file that has extensions with the same name. I expected that the EXTVER would be populated when the HDUList is made because I have no way of making the version of the ImageHDU that I can see in http://docs.astropy.org/en/stable/io/fits/api/images.html#images . Here is an example of my issue in Python 2.7 using astopy 1.3.3:

from astropy.io import fits
import numpy as np

def testissue():
    # Make a primary header
    prihdr = fits.PrimaryHDU()

    # Make 2 extensions, both named 'SCI'
    sci1 = fits.ImageHDU(data=np.ones((100,100)), name='SCI')
    sci2 = fits.ImageHDU(data=np.ones((100,100)), name='SCI')

    # Make and HDULIST with all of the extensions I want
    hdulist = fits.HDUList([prihdr, sci1, sci2])

    # Write that new fits file
    hdulist.writeto('testIssue.fits', overwrite=True)

    # Now try to use extver to get information per example at
    # http://docs.astropy.org/en/stable/io/fits/
    # >>> getheader('in.fits', ('sci', 2))  # use a tuple to do the same
    fits.getheader('testIssue.fits', ('SCI', 2))

Gives:

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-140-3d136e50da12> in <module>()
     15 # http://docs.astropy.org/en/stable/io/fits/
     16 # >>> getheader('in.fits', ('sci', 2))  # use a tuple to do the same
---> 17 fits.getheader('testIssue.fits', ('SCI', 2))

/Users/dborncamp/miniconda2/envs/astro/lib/python2.7/site-packages/astropy/io/fits/convenience.pyc in getheader(filename, *args, **kwargs)
    108     hdulist, extidx = _getext(filename, mode, *args, **kwargs)
    109     try:
--> 110         hdu = hdulist[extidx]
    111         header = hdu.header
    112     finally:

/Users/dborncamp/miniconda2/envs/astro/lib/python2.7/site-packages/astropy/io/fits/hdu/hdulist.pyc in __getitem__(self, key)
    312         # instead
    313         return self._try_while_unread_hdus(super(HDUList, self).__getitem__,
--> 314                                            self._positive_index_of(key))
    315
    316     def __contains__(self, item):

/Users/dborncamp/miniconda2/envs/astro/lib/python2.7/site-packages/astropy/io/fits/hdu/hdulist.pyc in _positive_index_of(self, key)
    700         """
    701
--> 702         index = self.index_of(key)
    703
    704         if index >= 0:

/Users/dborncamp/miniconda2/envs/astro/lib/python2.7/site-packages/astropy/io/fits/hdu/hdulist.pyc in index_of(self, key)
    681
    682         if (found is None):
--> 683             raise KeyError('Extension {} not found.'.format(repr(key)))
    684         else:
    685             return found

KeyError: "Extension ('SCI', 2) not found."

Is this expected behavior? It seems a little confusing that I would need to add the extension version information after the fact.