Would this still be called a retcon?
This is in regards to writing a story and the world building/Lore behind that world.
If the author has a character that says: "Wow you have one of the divine swords. There's only 5 left in the world." This is seen as the author speaking through the character and dropping exposition that helps build the lore of the sword and the world. Right?
However if later on in the story 12 people have a divine sword and the author makes no mention of the character that said there's only 5 being wrong and they just gloss over the fact this was said - is that a retcon?
Is there a term for a justification like "The character that said this probably just didn't know". An unreliable narrator, maybe?