Fix: Some bugs (#14734)

### What problem does this PR solve?

Fix: Some bugs
- Error during batch modification of metadata in the Knowledge Base
- Manually configured metadata is not displayed in search settings

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/components/metadata-filter/index.tsx

@@ -50,10 +50,18 @@ export function MetadataFilter({
 
   const methodName = prefix + 'meta_data_filter.method';
 
-  const kbIds: string[] = useWatch({
+  const datasetIds: string[] = useWatch({
     control: form.control,
     name: prefix + 'dataset_ids',
   });
+
+  const oldKbIds: string[] = useWatch({
+    control: form.control,
+    name: prefix + 'kb_ids',
+  });
+
+  const kbIds = datasetIds || oldKbIds || [];
+
   const metadata = useWatch({
     control: form.control,
     name: methodName,