Extra update notifications

[dbronstein]

Whenever I get an update notification, the number is always off by one. If it says there are 3 updates available, when I go into the app store, it only shows 2 of my apps that have updates. If it says 2 updates availalbe, there's only 1. And sometimes I get a notification for 1 update and there aren't any. Does anyone know why it is doing this and how to get it to show the right number of updates?