There's some weird problem with URLs that happened after upgrading to WordPress 3.3
First, my page at url /barmy would load the password protected feed previously only available at /feed/barmy
To fix this, I deactivated PowerPress, reset my wordpress permalink settings (changed from /%category%/%postname%/ to the first radio button option, save, then revert it back again and save), then reactivated powerpress, which leads to a new problem:
Now, going to /feed/rbr goes to a post with a permalink that begins with rbr, but isn't identical; going to /feed/barmy redirects to the page at /barmy. What can I do to fix this? Is this a bug that's being worked on?