feat: fix option label lose (#167)

* feat: fix option label lose

* feat: add test case

Author: heiyu4585

src/Mentions.tsx

@@ -209,6 +209,7 @@ const Mentions = React.forwardRef<MentionsRef, MentionsProps>((props, ref) => {
             key: React.Key;
           }) => ({
             ...optionProps,
+            label: optionProps.children,
             key: (key || optionProps.value) as string,
           }),
         );

tests/Mentions.spec.tsx

@@ -175,6 +175,18 @@ describe('Mentions', () => {
       });
       expect(onChange).toHaveBeenCalledWith('bamboo');
     });
+
+    it('do not lose label', () => {
+      const { container } = renderOptionsMentions();
+      simulateInput(container, '@');
+      fireEvent.mouseEnter(
+        container.querySelector('li.rc-mentions-dropdown-menu-item:last-child'),
+      );
+      expect(
+        container.querySelector('.rc-mentions-dropdown-menu-item-active')
+          .textContent,
+      ).toBe('Cat');
+    });
   });
 
   describe('filterOption', () => {