I made an account here to report this bug, I've been playing since early beta and have NEVER seen this before. I'm not sure if it is known or not.
At the beginning of my turn the draw stage came up, i was tabbed out at the time watching youtube videos. I tabbed back in and spammed as fast as I could on the item cards (looking for hot rot wine to cheeky take the king with spirit stones.) my game froze a bit for like 1 second while i tabbed back in and this caused me to draw like 9 cards. i only had like 6 wits so i think that freeze allowed me to draw over my wits limit since i spammed it. this is quite broken as it helps you choose exactly what rolls you get in a fight. still didn't draw hot rot wine tho :(
I tried to recreate it but didn't have any luck, I only tried once. I'll post an update if i find any more evidence (in single player ofc)
Here's a screenshot of my hand after realising i had over drawn.