Armor Duplicated

I took my spirit armor off, went to look inside of a chest that only had a full set of shadow armor inside of it, and saw a duplicated set of the spirit armor that I was wearing. The only difference is that it has the same durability of the shadow armor. Trim, enchantments, everything else is the same. Relogging didn’t fix it, placing both sets on separate armor stands didn’t fix it. I’m not looking for my shadow armor to be replaced, just letting others know about the bug!