Items duplicated upon leaving the server just before death

Not sure how to accurately explain this, so I'll just say what happened to get to this point. I was getting chased by a baby drowned zombie trident and, when on low hearts, I logged off of my server and asked my friend to join to assist me. When he joined he found my items on the ground and killed the zombie, when I rejoined I was in the same location with no change in deaths on my stats screen and I retained my items.

Not sure if this is fixable or if it was just a chance desync between client and server. My thought is that the trident hit me the moment I disconnected, and something happened that allowed me to keep my items AND drop them.