If the user writes a password larger than 4096 characters at the login
screen, it causes a crash instead of displaying the "Wrong
login/password" message.
The Python library used to hash password (passlib) is by default limited
to 4096 characters. Above this limit, it raises an error (source:
https://pythonhosted.org/passlib/lib/passlib.exc.html).
Allowing a password larger than 4096 is not necessary, we just limit the
field maximum length since such a situation should happen because of an
incorrect copy/paste.
opw-704110
Nicolas Martinelli
ea4c231130