Item Duplication

I was killing zombies in my zombie xp farm using frost walker boots with mending. I had depth strider boots on as my armour. While killing zombies i pressed right click a few times and I guess boots changed places between my hotbar and armour slot and eventually my depth strider became exact analog of my frost walker boots. So now i have 2 exact copies of frost walker boots and no depth strider boots. I have no idea how this happened or wether this is intended or not. Any way I could get back my depth strider? It had all maximum enchantements