test(mge/module): add module reset attribute test

GitOrigin-RevId: 6c9adc4a7022ed453221d7c58d0b4b0033fd00b4

imperative/python/test/unit/module/test_module.py

@@ -625,3 +625,34 @@ def test_repr_module_delete():
     del net.softmax
     output = net.__repr__()
     assert output == ground_truth
+
+
+def test_repr_module_reset_attr():
+    class ResetAttrModule(Module):
+        def __init__(self, flag):
+            super().__init__()
+            if flag:
+                self.a = None
+                self.a = Linear(3, 5)
+            else:
+                self.a = Linear(3, 5)
+                self.a = None
+
+        def forward(self, x):
+            if self.a:
+                x = self.a(x)
+            return x
+
+    ground_truth = [
+        (
+            "ResetAttrModule(\n"
+            "  (a): Linear(in_features=3, out_features=5, bias=True)\n"
+            ")"
+        ),
+        ("ResetAttrModule()"),
+    ]
+
+    m0 = ResetAttrModule(True)
+    m1 = ResetAttrModule(False)
+    output = [m0.__repr__(), m1.__repr__()]
+    assert output == ground_truth