When I send an email I’ll often remember I wanted to say something else so I go to my Sent folder, click the email and hit Reply All. It seems every email client has a different idea of what exactly Reply/Reply All on a Sent folder email means. Maybe it’s just me but I don’t think this is a hard thing to get right.
When I click Reply/Reply All on a Sent folder email I mean I want to reply to my own email and, since it doesn’t make sense to send it to me, I want the exact same To/CC/BCC addresses as when I originally sent the email.
It’s not rocket science.