Comment 15 for bug 688830

@Milo: it's nice to see your interest in helping!

The "affects" items can be classified in two parts:

1. Upstream projects: where the commits happen, the focus of development. It's here where you should work.

2. Distribuition packages (downstream): this is used to control when the bug fixes are delivered to users.

You should set the status as "In Progress" both in upstream and downstream. The assignee need to be set only in one of them (this way, other people can know that your are working on this bug). By convenience, we set the assignee in upstream.

Finally, to answer your question: if you want to help with unity project, you should set the status "In Progress" in "unity" and in "unity (ubuntu)" and set the assignee in "unity". If you want to help the unity-2d project, set the "In Progress" status in "unity-2d" and "unity-2d (ubuntu)" and the assignee in "unity-2d".