OK, it took me a surprisingly long time to reproduce the problem but now I can reproduce it in some unnatural cases:
(a) The centre of the window is below the bottom of the bottom-most monitor (or right of the right-most); or
(b) The height of the window is greater than the height of the monitor it's mostly on (and probably applies to width too).
I still cannot reproduce the bug in any "natural" case where (c) a window smaller than the monitor it's on (and centred) fails to maximize on that monitor. That's the main case reported at the top of the bug and the main case that worries me. I can't reproduce it.
Can anyone reproduce (c) any more or is it just (a) and (b) that are a problem?
OK, it took me a surprisingly long time to reproduce the problem but now I can reproduce it in some unnatural cases:
(a) The centre of the window is below the bottom of the bottom-most monitor (or right of the right-most); or
(b) The height of the window is greater than the height of the monitor it's mostly on (and probably applies to width too).
I still cannot reproduce the bug in any "natural" case where (c) a window smaller than the monitor it's on (and centred) fails to maximize on that monitor. That's the main case reported at the top of the bug and the main case that worries me. I can't reproduce it.
Can anyone reproduce (c) any more or is it just (a) and (b) that are a problem?