Maximize window goes to wrong monitor

[stianst]

I have a laptop with an external monitor which is. The external monitor resolution is 2048x1152 and the laptop monitor is 1366x768. Often when I maximize a window on the laptop monitor it is maximized on the external monitor instead.

To reproduce this:

1. Dual monitor setup with one monitor with a smaller resolution
2. Open a window on the small monitor
3. Resize the window so that it's height is greater than the monitor height (i.e. you can't see the whole window)
4. Select maximize window (either by pressing maximize in window toolbar or drag to the top)
5. Notice that the window is moved to the large monitor and maximized

To prevent this from happening when moving a window from the large screen to the small screen resize the window first to be fit inside the small screen. Now the window is maximized on the smaller screen as expected.

Another way to observe this behaviour is to drag a small unmaximized window (one that fits fully on the smaller monitor) from the large monitor onto the top of the small monitor. This window is now maximized on the smaller monitor. However, if the window on the large monitor is made to big to fit on the small monitor prior to dragging it to the top of the small monitor it is maximized on the large monitor.