Fixed #32494 -- Adjusted system check for raw_id_fields to warn about Field.attname.

tests/modeladmin/test_checks.py

@@ -84,6 +84,18 @@ class RawIdCheckTests(CheckTestCase):
 
         self.assertIsValid(TestModelAdmin, ValidationTestModel)
 
+    def test_field_attname(self):
+        class TestModelAdmin(ModelAdmin):
+            raw_id_fields = ['band_id']
+
+        self.assertIsInvalid(
+            TestModelAdmin,
+            ValidationTestModel,
+            "The value of 'raw_id_fields[0]' refers to 'band_id', which is "
+            "not a field of 'modeladmin.ValidationTestModel'.",
+            'admin.E002',
+        )
+
 
 class FieldsetsCheckTests(CheckTestCase):