fix(es/lints): Correct the false positive error of TS2309 (#9635)

**Related issue:**

- Closes #9632

.changeset/wicked-windows-occur.md

@@ -0,0 +1,6 @@
+---
+swc_core: patch
+swc_ecma_lints: patch
+---
+
+fix(es/lints): Correct the false positive error of TS2309

crates/swc_ecma_lints/src/rules/duplicate_exports.rs

@@ -1,4 +1,4 @@
-use std::collections::hash_map::Entry;
+use std::{collections::hash_map::Entry, mem};
 
 use swc_atoms::JsWord;
 use swc_common::{collections::AHashMap, errors::HANDLER, Span};
@@ -82,7 +82,9 @@ impl Visit for DuplicateExports {
 
     fn visit_ts_module_decl(&mut self, d: &TsModuleDecl) {
         if !d.declare {
+            let old = mem::take(self);
             d.visit_children_with(self);
+            *self = old;
         }
     }
 

crates/swc_ecma_lints/tests/pass/issue-9632/1/input.ts

@@ -0,0 +1,9 @@
+import * as meta from "./meta.js";
+
+function nameof(obj: unknown) { }
+
+namespace nameof {
+    export import version = meta.version;
+}
+
+export = nameof;