Mismatch behaviour in documentation of `email.Message.defects`

Documentation

https://docs.python.org/3/library/email.message.html#email.message.EmailMessage.defects

The defects attribute contains a list of all the problems found when parsing this message. See email.errors for a detailed description of the possible parsing defects.

It actually does not include defects in the message headers (#106144, #90169). Until these issues are fixed, the documentation should state that header defects are not included in email.Message.defects.

Linked PRs

• gh-128569

先從連結的 email.message.EmailMessage.defects 文件和所參照的 email.errors 頁面開始，然後檢視與標頭缺陷相關的 issue。完成的標準是，文件準確說明訊息標頭中的缺陷在這些 issue 修復之前不會包含在 email.Message.defects 中。