Not really a big deal to me, but I thought I'd report it anyway in case it's not expected behavior.
It looks like duplicating a document and modifying it (e.g. for the purpose of meeting announcements and other template-like documents) does not register for mission fulfillment (and possibly points).
- Duplicate an existing document.
- Edit duplicate and save as draft.
- Later publish duplicate.
- Result: Missions don't count duplicated documents. Not sure if it counted towards points.