启用了 quote 和 create_replies 模式后，内联转发的消息会被截断。
有什么建议吗？
原始消息（已移除部分头部信息）：
From: Jeffrey Lastname <jeff@myemail.us>
To: test-cat@example.org
Subject: Fwd: Thank you for your support!
X-Mailer: MailMate (1.14r5745)
Content-Type: text/plain; format=flowed
Some really long sample text.
Forwarded message:
> From: Donations Team <giving@example2.org>
> To: jeff@myemail.us
> Subject: Thank you for your support!
>
> Dear Jeffrey,
>
> Our heartfelt thanks for your donation to Example Project,
> especially now. Together we will write the future.
论坛帖子中的消息（两种模式表现相同）：
Some really long sample text.
Forwarded message: