I enchanted mending on my sword and then enchanted unbreaking on it and now I have both.

so I got mending for my sword because it's netherite and why not, right? Then, i found an enchanted book with sharpness and unbreaking on it, and I thought, "Well i can probably still merge this with my sword and the unbreaking will just go away," Right? But not right,  I merged them together and now I have both mending and unbreaking on my sword.