Ayup. Welcome to the madness. The gist of the idea is usually “Lenin was a German spy, sent to destabilise Russia, collapse it and make it lose the war”. That’s because multiple territories had seceded from the now former Russian Empire (i.e. Poland, Finland), and some territories were given up as part of the Brest-Litovsk treaty (look up the terms of it, if you ever get tired of hearing how Germany was “humiliated” by Versailles treaty).