DavidGB, I tried a unified folder setup and can't duplicate the issue with that either. Anyhow, I seem to be doing the same thing as you do and don't see a problem with 94b2, even when running a profile originally produced 2 versions back, v78. Let me ask a simple question: What happens if you just delete all the mbox and msf files on an account running 94b? I don't see a problem doing this after everything re-downloads. Do you?
Bug 1733966 Comment 63 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
DavidGB, I tried a unified folder setup and can't duplicate the issue with that either. Anyhow, I seem to be doing the same thing as you do and don't see a problem with 94b2, even when running a profile originally produced 2 versions back, v78. Let me ask a simple question: What happens if you just delete all the mbox and msf files on an account running 94b? I don't see a problem doing this after everything re-downloads. Do you? Off topic addendum: Regard comments above about tb supporting imap NOTIFY (https://datatracker.ietf.org/doc/html/rfc5465), I just checked the CAPABILITY response of my 12 or more popular imap servers I use for tb testing and development and I only see one that advertises support for NOTIFY. So even though it sounds like a good idea, seeming lack of support for it probably disqualifies it for addition to tb. FWIW about 14 years ago it was suggested to be added but nothing happened but one user attempt an add-on to support it. See bug 479133.