old analysis are not working.

[antgonza]

Not sure how long this behavior has been happening but old analysis are not being shown. The error:

Time: 2016-01-27 05:38:05.310454
Message:
ERROR:
1
TRACE:
Traceback (most recent call last):

  File "/home/qiita/.virtualenvs/qiita/lib/python2.7/site-packages/tornado/web.py", line 1141, in _when_complete
    callback()

  File "/home/qiita/.virtualenvs/qiita/lib/python2.7/site-packages/tornado/web.py", line 1162, in _execute_method
    self._when_complete(method(*self.path_args, **self.path_kwargs),

  File "/home/qiita/.virtualenvs/qiita/lib/python2.7/site-packages/tornado/web.py", line 2297, in wrapper
    return method(self, *args, **kwargs)

  File "/home/qiita/qiita_main/qiita_core/util.py", line 94, in wrapper
    return func(*args, **kwargs)

  File "/home/qiita/qiita_main/qiita_pet/handlers/analysis_handlers.py", line 161, in get
    dropped_samples = analysis.dropped_samples

  File "/home/qiita/qiita_main/qiita_db/analysis.py", line 404, in dropped_samples
    all_samples[proc_data_id] = all_samples[proc_data_id] - ids

KeyError: 1