Here we are again. Indeed, as mentioned by you, this is a bug.
We have a fix and the next release will have this fix.
For all that cannot wait to fix this:
cookie.php line 179 as follows:
Code (PHP):if ( ( $loginpassword_ask == 1 ) && ( $_SESSION ['loggedin'] != 'admin' ) )
This line has to be changed to:
Code (PHP):if ( $_SESSION ['loggedin'] != 'admin' )
@cphMichael: many many thanks for finding and telling us. We really appreciate this.
Best regards
Reimar