Path.ExpiresIn can be NaN

[hibiyasleep]

What did

Upload something over /overview upload form.

What happened

sqlite> Select count(*) From path Where expiresin = 'NaN';
1

And this happens, when opens path without sign-in state:

File "./app/route.py", line 416, in path_transmit
    (fileData.ExpiresIn is not None and time.time() > fileData.Uploaded + fileData.ExpiresIn)):
TypeError: unsupported operand type(s) for +: 'int' and 'unicode'

Which used

uwsgi/Python 2.7.12, SQLAlchemy 1.0.12 with sqlite.