Resurrected topics should go away when last post is deleted

[cpradio]

I believe this is the same as:

Deleting posts doesn't reset last activity date

We were having an issue with the auto-close feature where threads which have been dormant for a while weren’t being closed automatically (we have it set to close 30 days after the last activity). Doing some moderating, I have found that deleting the last post in a thread doesn’t reset the last activity date on the thread. So if a spammer wannabe comes in and lays down a crap post two months after the last post, we lose those two months for the auto-close functionality to work. Edit: It seems…