fix: search input unresponsive when notFoundContent is null and no op…

src/BaseSelect/index.tsx

@@ -431,10 +431,26 @@ const BaseSelect = React.forwardRef<BaseSelectRef, BaseSelectProps>((props, ref)
   };
 
   // Close will clean up single mode search text
+  // Use ref to avoid adding emptyListContent to dependencies
+  const emptyListContentRef = React.useRef(emptyListContent);
+  emptyListContentRef.current = emptyListContent;
+
+  const prevOpenRef = React.useRef(mergedOpen);
   React.useEffect(() => {
-    if (!mergedOpen && !multiple && mode !== 'combobox') {
+    // Only clean search value when dropdown actually closes (true -> false)
+    // Skip when emptyListContent is true - this means dropdown was forced closed
+    // due to no matching options and notFoundContent being null,
+    // user should still be able to continue typing
+    if (
+      prevOpenRef.current &&
+      !mergedOpen &&
+      !multiple &&
+      mode !== 'combobox' &&
+      !emptyListContentRef.current
+    ) {
       onInternalSearch('', false, false);
     }
+    prevOpenRef.current = mergedOpen;
   }, [mergedOpen]);
 
   // ============================ Disabled ============================

tests/Select.test.tsx

@@ -1997,6 +1997,34 @@ describe('Select.Basic', () => {
     expect(container.querySelector('.rc-select-dropdown-empty')).toBeFalsy();
   });
 
+  it('should allow typing when notFoundContent is null and no options match', () => {
+    const onSearch = jest.fn();
+    const { container } = render(
+      <Select showSearch notFoundContent={null} onSearch={onSearch}>
+        <Option value="jack">Jack</Option>
+        <Option value="lucy">Lucy</Option>
+      </Select>,
+    );
+
+    const input = container.querySelector('input');
+
+    // Type 'j' - should match 'Jack'
+    fireEvent.change(input, { target: { value: 'j' } });
+    expect(onSearch).toHaveBeenLastCalledWith('j');
+    expect(input.value).toBe('j');
+    expect(container.querySelectorAll('.rc-select-item-option')).toHaveLength(1);
+
+    // Type 'x' - no match, but input should still work
+    fireEvent.change(input, { target: { value: 'x' } });
+    expect(onSearch).toHaveBeenLastCalledWith('x');
+    expect(input.value).toBe('x');
+
+    // Type more characters - should continue working
+    fireEvent.change(input, { target: { value: 'xyz' } });
+    expect(onSearch).toHaveBeenLastCalledWith('xyz');
+    expect(input.value).toBe('xyz');
+  });
+
   it('click outside to close select', () => {
     jest.useFakeTimers();