The queue of offline edits (outbox) and the offline mail cache were
attached to an account only when the email store switched to it. A cold
start restores the view of the account it showed last, so there was no
switch: the queue from the last session was never loaded or sent, an
edit made meanwhile was dropped with a console warning, and the offline
cache neither stored nor served bodies.
On an account switch the queue was loaded and flushed right away,
before the new account's session was up and before the check for a
replaced server. The JMAP client still served the previous account
then, so queued edits could reach it.
- the email store attaches the outbox and the offline cache whenever it
is pointed at an account, also the one it already shows
- the outbox holds its ops until the auth store resumes it, once the
account's session is up and its server was checked; edits made before
that are queued, and edits made while the queue loads are kept
- the JMAP client serves no account while it loads or signs in to
another one; a failed switch puts the previous account and its queue
back
- dropping an account's queue or cache for a replaced server cancels a
read of it still under way
- the offline sync stops when the cache or the client moves to another
account, instead of filing one account's mail under another
Linus Rath