Show the sender's encryption key(s) separately
* should be better usability if the sender's key(s) are not "hidden" between the keys of the recipients * in mixed mode we need two encryption keys for the sender (OpenPGP and S/MIME), but only one encryption key for the recipients (OpenPGP or S/MIME); clear separation of the keys should avoid confusion
- GnuPG-bug-id: T5283