X, Escape, clicking another message and Escape in a pop-out window
now all save the draft and close, with a "Draft saved" toast that has
Discard (with Undo). The Save or discard question shows only when that
save fails. A Reply or Forward closed before the user changed anything
leaves no draft. Undo send being on by default no longer asks "Send
without a delay?" on servers without delayed sending; only a delay the
user picked does.
Changed test assertions: the close-guard, priority, account-switch,
threading, sign-out, mention, draft-attachments, discard-uploads and
save-pending-attachments tests reached saving or discarding through the
Save or discard dialog on close, which now only appears after a failed
save. They now close directly, or use the Discard button, or check the
failed-save question. The send-delay test marks its delay as chosen.
Linus Rath