fix: Revert reuse deserialize result to fix data overwritten

See also milvus-io#34637

Signed-off-by: Congqi Xia <[email protected]>

internal/storage/serde.go

@@ -538,9 +538,8 @@ func (deser *DeserializeReader[T]) Next() error {
 		deser.pos = 0
 		deser.rec = deser.rr.Record()
 
-		if deser.values == nil || len(deser.values) != deser.rec.Len() {
 			deser.values = make([]T, deser.rec.Len())
-		}
+
 		if err := deser.deserializer(deser.rec, deser.values); err != nil {
 			return err
 		}