[] Joining late breaks drifting/item use controls

Joined a game in the middle of round 1, and encountered the following bugs:

  1. The game would register pressing the drift button, but not register letting go of the drift button, causing the kart to drift continuously until the accelerate button was released.

  2. The item button registered on the first press, but did not register on any subsequent presses.

These bugs weren’t round-specific, and lasted until the end of the game. Subsequent games (after the map selection screen) no longer had these bugs.