Note about tricky redirects in PromoteController.GET_listing.

r2/r2/controllers/promotecontroller.py

@@ -258,6 +258,7 @@ class PromoteController(ListingController):
               sr=nop('sr'))
     def GET_listing(self, sr=None, sort="", **env):
         if not c.user_is_loggedin or not c.user.email_verified:
+            # never reached--see MinimalController.on_validation_error
             return self.redirect("/ad_inq")
         self.sort = sort
         self.sr = None