in conversation view, saving email to a folder makes it disappear

[Olifair]

I just submitted this bug below to TB bugzilla bug 1820231 :

using TB 102.8.0

I think it's a TB problem, however I thought it would be good to mention it here, just in the unlikely case, that a TB developer would want to contact Klaux ;-)

https://bugzilla.mozilla.org/show_bug.cgi?id=1820231

Steps to reproduce:

opened an email in conversation view, in a new tab then moved on of the emails in the conversation to a different folder, using Nostalgy++ V 3.6.1 (S shortcut) these emails were all in an IMAP folder and I moved one of these emails to a local folder

Actual results:

the email was moved to the different folder, but this email disappeared from the conversation view when closing this conversation view tab and opening a new one for the same conversation does show the email again.

Expected results:

an email should not disappear when it is moved or saved to a different folder