Winter Wonderland Lulu Permanent Polymorph [Gameplay]

I was recently in a game as Vayne with Braum support against an Ashe + Lulu bot lane. The Lulu was using a Winter Wonderland skin, which ends up being relevant. At one point we got into a skirmish and lulu poly-morphed me. Instead of turning back into Vayne after the cc wore off, I continued to run around as the snowman. When I typed in chat I was listed as a snowman and the mini-map icon was a solid white square. My abilities only started to work again after Lulu poly-morphed me a second time (after which I remained a snowman) but my passive ability icon was just a black square. The issue 'seemed' to fix itself and resume normal interaction with poly-morph after a manual disconnect and reconnect. My teammates were all able to see me as a snowman running around flailing my little stick arms.[slayer-pantheon-rainbows]