I'm not sure about the logic behind this piece of Wall code. Previously the user was not passed as a parameter to getWallTitle method, so the user was detected by WallHelper::getUser - so it was based on the current Title object/F::App()->wg->Title. Right now we're changing the logic so the redirect will go the currently logged user page. That's seems like a logic change, not bugfixing, and I'm not sure it will fix the bug we're experiencing.