Dear Maintainer,

   * What led up to the situation?
   When I update debian from buster to  bullseye yesterday, evolution cannot show mails correctly now. All Chinese characters of mail body are not show or shown in boxes.

   I try to change the character encoding, but it doesn't work. I deleted all files in ~/.config/evolution, ~/.local/share/evolution, and ~/.cache/evolution, and reinstalled the evolution package, there's no use.

   Now, I can't read the mail, only the subject list is correct, chinese characters are all missing or shown as a box. But tasks, calendars, and memos are all shown correct.