text: Title: json validation loses data element in casting to python object
  Body: ### Initial Checks
  
  - [x] I confirm that I'm using Pydantic V2
  
  ### Description
  
  I have noticed an odd problem. It may be related to issue #9544.
  
  Given:
  - A source file with json format data, containing an element "production_date" at four levels deep in the hierarchy. There are multiple tuples at this level and each has a production date value similar to "May 24".
  - A Pydantic model "StatementContract" that is comprised of ten classes defining a document structure and and eleventh class that references the other ten.
  - A "json_data" is dictionary read from a file. The file was built using the same StatementContract in another module.
  
  When I step over this statement:
  `report_data = StatementContract(**json_data)`
  
  The corresponding element in report_data are empty strings. In the example provided, the production date in json_data is "May 24" and that same element in report_data is ' '. All other data element found in the json source are present in report_data.
  
  The archive "json_convert_test.zip" contains four files necessary to run the test; source data in json format, pydantic model, required validator file, and the test code.
  
  [json_convert_test.zip](https://github.com/user-attachments/files/18848425/json_convert_test.zip)
  
  Note: this is a duplicate of #11447, which was closed before I uploaded the test files.
  
  ### Example Code
  
  ```Python
  import json
  from model_revenue_stmt_0103_test import RunStatementContract
  
  print("test json validation and load python object")
  json_source_file = "Revenue_Statement.json"
  try:
      with open(json_source_file, "r") as f:
          nested_json = json.load(f)
          print("nested_json loaded")
  except Exception as e:
      raise Exception(f"Unexpected error reading file: {json_source_file}\n Error: {str(e)}")
  
  # validate the model and load report_data
  try:
      report_data = RunStatementContract(**nested_json)
  except Exception as e:
      raise Exception(f"Error parsing JSON data into RunStatementContract object. Error: {str(e)}")
  
  for property_report in report_data.property_reports:
      for product in property_report.products:
          for detail in product.transaction_details:
              assert detail.production_date == "May 24"
  ```
  
  ### Python, Pydantic & OS Version
  
  ```Text
  pydantic version: 2.10.6
  pydantic-core version: 2.29.0
  pydantic-core build: profile=release pgo=false
  install path: ...venv/lib/python3.12/site-packages/pydantic
  python version: 3.12.8 (main, Dec  3 2024, 18:42:41) [Clang 16.0.0 (clang-1600.0.26.4)]
  platform: macOS-15.3.1-arm64-arm-64bit
  related packages: typing_extensions-4.12.2
  commit: unknown
  ```