Bugzilla

Windows 10
Version 102.0.2

Settings > General
REading and Display
Select 'A new message window'
Do not select 'Close message window/tab on move or delete.

Disable the Message Pane.

In list there are 3 emails, A, B, C where A is the top one.
Sorted by Date, Descending, unthreaded

Select 'B' to highlight then open email 'B' using double click so it opens in a new window.
then press 'A'
Email is archived.
In Message List email 'C' is now highlighted as the email above has been removed and list is moved up to fill gap. This is expected.
However, email 'A' is auto opened and is now displaying in the window which previously displayed 'B'.

Expect:
The highlighted Email 'C' to be displaying in the already opened window.

Windows 10
Version 102.0.2

Settings > General
REading and Display
Select 'A new message window'
Do not select 'Close message window/tab on move or delete.

Disable the Message Pane.

In list there are 3 emails, A, B, C where A is the top one.
Sorted by Date, Descending, unthreaded

Select 'B' to highlight then open email 'B' using double click so it opens in a new window.
then press 'A'
Email is archived.
In Message List email 'C' is now highlighted as the email above has been removed and list is moved up to fill gap. This is expected.
However, email 'A' is auto opened and is now displaying in the window which previously displayed 'B'.

Expect:
The highlighted Email 'C' to be displaying in the already opened window.

Note: 
If Message Pane is enabled, but keep all other settings
Select 'B' it is displayed in Message Pane
press 'A' key and email 'B' is Archived.
Email 'C' is auto highlighted in list and email 'C' is displayed in MessagePane.
So all works as expected when using Message Pane.

Windows 10
Version 102.0.2

Settings > General
REading and Display
Select 'A new message window'
Do not select 'Close message window/tab on move or delete.

Disable the Message Pane.

In list there are 3 emails, A, B, C where A is the top one.
Sorted by Date, Descending, unthreaded

Select 'B' to highlight then open email 'B' using double click so it opens in a new window.
then press 'A'
Email is archived.
In Message List email 'C' is now highlighted as the email above has been removed and list is moved up to fill gap. This is expected.
However, email 'A' is auto opened and is now displaying in the window which previously displayed 'B'. This is an error - not expected.

Expect:
The highlighted Email 'C' to be displaying in the already opened window.

Note: 
If Message Pane is enabled, but keep all other settings
Select 'B' it is displayed in Message Pane
press 'A' key and email 'B' is Archived.
Email 'C' is auto highlighted in list and email 'C' is displayed in MessagePane.
So all works as expected when using Message Pane.