As this may be a bug not previously discovered, it may also be relevant to all later upgrades from 7.0 to 7.0.2

The first post of a topic was deleted, after subsequent posts were made in that topic, resulting in the topic no longer displaying in the list of topics, but still displaying in the Active Topics list.

Is this a bug that was previously discovered, or one that was never discovered previously and needs to be looked at?

This needs to be moved into the correct forum.

I believe we caught this in the 7.0.2 release. I'll double check to make sure.