Of all bugs i have encountered, loading an older save with this one, doesn't fix the problem.
So, when you "Enchant" an item (armor, shield or weapon) and then trying to sell it, all your "Enchants" are deleted and item returns to its original state.
It is not much of a bug, more of a programming defect. Although, one can use this to undo his bad "Enchants" and make it proper.
And in a "perfect world" i think that price value of an item, should change accordingly to its "Enchants", just to be fair .
*Great game by the way