When moving a thread to a folder, keep sent emails in 'sent items'
Today – If you want to move a thread of emails to a folder (e.g. bills), AM moves the whole thread including the mails you've sent. Therefore, they do not show in the 'sent items' folder anymore. On gmail/outlook online or apple mail, when you move a thread to a folder (e.g. bills) it just moves the mail received. You can still see the tread on 'sent items' and on the folder you've moved it to. (I think this only affects IMAP account.)
I'd really like to be able to choose if I want AM to move only the mails received or the actual whole thread (like on apple mail).

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Max Shu commented
A musthave thing. It's annoying to delete sent messages manually. Most of other mail apps trash all the thread not just received messages.