Am I doing something wrong here with ```make doc```:
```
  File "/home/alex/git/pandas/doc/source/_templates/autosummary/class.rst", line 1, in top-level template code
    {% extends "!autosummary/class.rst" %}
  File "/home/alex/git/pandas/doc/source/_templates/autosummary/class.rst", line 1, in top-level template code
    {% extends "!autosummary/class.rst" %}
  File "/usr/local/lib/python2.7/dist-packages/jinja2/utils.py", line 339, in get
    return self[key]
  File "/usr/local/lib/python2.7/dist-packages/jinja2/utils.py", line 389, in __getitem__
    if self._queue[-1] != key:
RuntimeError: maximum recursion depth exceeded in cmp
> /usr/local/lib/python2.7/dist-packages/jinja2/utils.py(389)__getitem__()
-> if self._queue[-1] != key:
(Pdb) 
```