Please describe the problem:
After vertical maximization of a window, it is still possible to move the window horizontally. However, when the window is Un-Maximized Vertically, it jumps back to its original horizontal (and vertical) position. While it makes sense for the window to return to the original vertical position, it is confusing when the window jumps horizontally, especially if using focus-follows-mouse and the window jumps out of focus with no such intention by the user. 

Steps to reproduce:
1. Maximize window vertically
2. Move window horizontally
3. Un-Maximize vertically


Actual results:
The window jumps back to the original horizontal position instead of just returning to its original vertical position

Expected results:
The window should maintain the last horizontal position set by the user, even if it was set after the window was maximized vertically.

Does this happen every time?
yes

Other information: