_getexif() -> RuntimeError: dictionary changed size during iteration

[Matthew McGowan]

>>> from PIL import Image
>>> i = Image.open("/home/matthew/Pictures/IMG_0187.JPG")
>>> i._getexif()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/PIL/JpegImagePlugin.py", line 381, in _getexif
    for key, value in info.items():
  File "/usr/lib/python2.7/_abcoll.py", line 369, in items
    return [(key, self[key]) for key in self]
RuntimeError: dictionary changed size during iteration

On my system, the above python code worked until about a week or so ago, now it results in a RuntimeError.