bug simple poll

Hi,
there's a bug simple poll module.. if the simple poll is "open voting" when a not logged user tries to vote with at least one vote done, it's like the user has already voted even if has another ip address. I've seen in the database that the column user_id in the exponent_poll_timeblock table is always 0 and ip_hash is empty.. so it seems that $user is not an object or/and $user->id is 0.

i've fixed it in simplepollmodule/action/vote.php:

replace
if ($user)

with
if (is_object($user) && $user->id > 0)

there are 2 rows to replace.

i think it's always better to check objects and arrays properly before using them

bye