Queue module does not count the last submitted vote correctly

Queue module does not count the last submitted vote correctly. After the user has submitted a vote, it wouldn't count as the vaild vote until another user vote in.

Steps of reproduce:
- If the promotion threshold is set as 1.
- First user press +1 vote

Actual results:
- The vote just submitted won't get counted and the post won't be promoted until second user vote +1 again.

Expected results:
- The vote should count and the promotion should be immediate.

Attached is the code to fix the problem.