I know that it supposedly doesn't create a performance hit, but sometimes, you just want to clear it out.

What I'm wondering is this, though. When looking at forum posts, I saw that one poster did:

status:completed AND isRepeating:false

So my question is ... is the "isRepeating:false" necessary? If you delete a completed task that repeats, you're not deleting all the iterations of that task, are you?