OK, OK, you finally got me....

Given THIS set of circumstances your model would respond to the classic idea of dihedral and just roll back to upright. I still say there's a little side slippin' goin' on as the fuselage settles into that big V groove the wings are cutting through the air but with the upward pointing wing producing no initial lift the horizontal wing is doing the driving and it's going to lever that model back to level pretty quick.
ARE WE ALL HAPPY NOW....... LOL :spinnyeye
PS: Actually thinking it over we have a very unique situation here. With wings at 45 degrees the effective projected span of the model in level flight is going to be the same as the model banked 45 degrees with the one wing horizontal. So the area in both cases will be the same. This means the fuselage WILL NOT settle as the model rights itself back to level AS THE WING AREA WILL REMAIN CONSTANT THROUGHOUT THE ROLL TO LEVEL..........
I'VE BEEN SET UP :devious: CURSE YOU RED BARON :boxing:
You may take your bow now......