[MlMt] Mailbox "Inbox" is not showing messages from subfolders in "Source/account/INBOX"

[Lothar]

Dear all

I created a subfolder in my providers Inbox.
Selecting “Sources/myaccount/INBOX” shows this subfolder.
Right-clicking “INBOX” and selecting “Edit Rules…” I can 
select to include subfolders in the Conditions-tab.
Selecting INBOX now shows all messages, including the ones in the 
subfolders.
That works fine.

But, selecting Mailbox “Inbox” still only shows messages from the 
folder “INBOX”, not the ones in the subfolders.
I tried right-clicking “Inbox/myaccount”, selecting “Edit 
Rules…” and tick to include subfolders in the Conditions-tab, but 
this does not change anything.

Is this the way it is supposed to work?
I thought, Mailbox “Inbox” would also include messages from the 
subfolders when “include subfolders” is set to true on “INBOX”.

--
lothar