Gangplank loses his current Silver Serpents when disconnecting from a game.

Hello guys. I just played a GP game and discovered this. Around 15 mins i had farmed the 500 silver serpents so i backed to buy one ulti improvement. Right then I had a lag spike so I disconnected. Quickly reconnected and discovered that I had 0 serpents. Luckily, as soon as I killed a minion with Q I recovered all of them. I cannot provide the replay because it was in coop vs AI. Thanks for your attention.