Really, I guess there isn't going to be a fix then?
I've scoured the interwebs trying to fix this. Nothing works. No amount of cooking pot activations, attacking Rikke, sleeping in bedrolls, CWObs or CWMission04 console commands work. When I hit this bug I thought, ok I'm on the computer, there hasn't been a bug yet that I couldn't fix with a console or a mod. Boy was I in for a surprise. Spent 4 hours searching the web and trying all sorts of things to get this quest along. When that failed, I reloaded a save from before I started the Civil War and replayed all the way back up to this point, only for the same thing to happen.
Until someone can tell me some sure fire way to fix this, or preferably Bethesda fixes what it probably a tiny little script change, I'm going to leave the questline at just before you talk to Tulius, where his idea of a "blade" is a iron banded shield, right before he sends you to "Regain Winterhold Hold" Until this is fixed that's where I'll be. Hopefully if they do fix it, that will be at a point where the script error wont be permanently bugged in my savegame
