Comment 8 for bug 760240

Here is my understanding of the mis-behaviour:
 1. you need at least two monitors, with different resolutions
 2. open a resizable window on the smallest monitor (example: gedit)
 3. If the has a vertical (resp. horizontal) size bigger than the small monitor _and_ smaller than the big monitor, when you maximize it, it is automatically moved to the big monitor (but its original size and position are still remembered in the small monitor). In other words, if the window size is so large that it doesn't fit in the big monitor it stays in the small monitor.

I'd say the expected behaviour is that the window is placed on the monitor which has the largest intersection area with the window.