How to partially unwrap a link?

[laukaichung]

Example:

https://codesandbox.io/s/slate-2-images-and-links-forked-6v5hgy?file=/src/editor/link-button.tsx

Highlight the text "unlinkThis" then click the unlink button, but t just unwraps the entire link.

export const UnLinkButton = () => {
  const editor = useSlate();
  const isActive = isElementActive(editor);
  return (
    <button
      color={isActive ? "red" : undefined}
      onClick={async () => {
        if (isActive) {
          Transforms.unwrapNodes(editor, {
            split: true,
            match: (n) =>
              !Editor.isEditor(n) && Element.isElement(n) && n.type === "link"
          });
        }
      }}
    >
      unlink
    </button>
  );
};

[cdx111]

You may click the link while to save that selection of editor