python
diff --git a/Collapse file
‎mypy/exportjson.py‎
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+6-2Lines changed: 6 additions & 2 deletions b/Collapse file
‎mypy/exportjson.py‎
Copy file name to clipboardExpand all lines: mypy/exportjson.py
+6-2Lines changed: 6 additions & 2 deletions
diff --git a/Collapse file
‎mypy/nodes.py‎
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+11Lines changed: 11 additions & 0 deletions b/Collapse file
‎mypy/nodes.py‎
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+11Lines changed: 11 additions & 0 deletions
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‎mypy/test/testexportjson.py‎
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+6Lines changed: 6 additions & 0 deletions b/Collapse file
‎mypy/test/testexportjson.py‎
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+6Lines changed: 6 additions & 0 deletions
@@ -128,8 +128,12 @@ def convert_symbol_table_node(self: SymbolTableNode, cfg: Config) -> Json:
         data["plugin_generated"] = True
     if self.cross_ref:
         data["cross_ref"] = self.cross_ref
-    elif self.node is not None:
-        data["node"] = convert_symbol_node(self.node, cfg)
+    else:
+        # Read the raw node without cross-reference fixup, since exportjson reads
+        # cache files in isolation and no node fixer is available.
+        node = self.read_node_no_fixup()
+        if node is not None:
+            data["node"] = convert_symbol_node(node, cfg)
     return data
 
 
 
@@ -4952,6 +4952,17 @@ def node(self) -> SymbolNode | None:
                 self.unfixed = False
         return self._node
 
+    def read_node_no_fixup(self) -> SymbolNode | None:
+        """Return the deserialized node without performing cross-reference fixup.
+
+        This is intended for introspection tools (such as mypy.exportjson) that read
+        cache files in isolation, where no node fixer is available.
+        """
+        if self._node is None and self._node_bytes:
+            self._node = read_symbol(ReadBuffer(self._node_bytes), self._node_tag)
+            self._node_bytes = b""
+        return self._node
+
     def copy(self) -> SymbolTableNode:
         new = SymbolTableNode(
             self.kind, self._node, self.module_public, self.implicit, self.module_hidden
 
@@ -11,6 +11,7 @@
 from mypy.errors import CompileError
 from mypy.exportjson import convert_binary_cache_meta_to_json, convert_binary_cache_to_json
 from mypy.modulefinder import BuildSource
+from mypy.modules_state import modules_state
 from mypy.options import Options
 from mypy.test.config import test_temp_dir
 from mypy.test.data import DataDrivenTestCase, DataSuite
@@ -44,6 +45,11 @@ def run_case(self, testcase: DataDrivenTestCase) -> None:
             major, minor = sys.version_info[:2]
             cache_dir = os.path.join(".mypy_cache", f"{major}.{minor}")
 
+            # Reset the global fixup state, since the exportjson tool
+            # reads cache files in isolation (no node fixer available).
+            modules_state.node_fixer = None
+            modules_state.modules = {}
+
             for module in result.files:
                 if module in (
                     "builtins",