The cause of the outage was a very unfortunate code change that overwrote some key options in the options table for a number of blogs.

此次宕机是因为一次代码修改失误：在一些博客的选项表中覆盖了一些关键选项。

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Even if you make a mistake and forget to reapply or misapply a change, there's always a complete history of all changes (including the ones you overwrote) to refer to.

即便是您出了错，忘记重新应用更改或是错误地应用了更改，总是可以找到所有更改的完整历史(包括您覆盖的那些更改)供您参考。

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