v10.2.1

When sending a message, update its identity if necessary. This addresses the previous issue where if you had multiple instances of Thunderbird with their accounts in different orders using the same UUID with one of them set up to do actual message delivery, the wrong identity might be used to send messages.

Similarly, when we claim a message from another Thunderbird instance we now adjust its identity as needed then as well.

Put the scheduled send date in the Date header when rescheduling a message, not just when scheduling it the first time (unless the preference which controls that is turned off).

Translation updates.