fastjson 1.2.83 desocialization Date [format:yyyyMMddHHmmss] Loss of accuracy

[gitwyy]

https://github.com/alibaba/fastjson/issues/4167

[dongeforever]

@gitwyy The latest code in branch 'develop' use fastjson of version 1.2.69_noneautotype.

And I test it that 1.2.69_noneautotype does not have such a problem.