Old forum directory keeps getting recreated

Hi all,

I'm on 2.1.1 stable.

Last week, the group for whom I run our forum voted to rename the forum to something new, and asked that I change the vanilla directory to match. Previously, the forum had been hosted at domain.name/onlinecampus/ and I moved it domain.name/orca/ simply by

1. Renaming the directory
2. Deleting the .ini files in the /cache directory

Everything works fine, but there's a weird thing coming up, in that the /onlinecampus/ directory keeps getting recreated. It's empty, but puzzling and mildly troubling to me, because as soon as it's recreated, the redirect I set up from /onlinecampus/ to /orca/ stops working, until I delete the directory again.

I'm just trying to figure out why it's being recreated, and I'd like to rule out Vanilla before I get into the server settings themselves; is there anything in the Vanilla code or the database settings that I missed, that would recreating the /onlinecampus/ directory?

If not, great! I can move on to check out other possible causes.

Thanks!