wrong window position in awesome WM

[pdumais]

Using awesome WM, the menu sometimes appear at the wrong place and transparency doesn't work.

I'm not exactly sure what the logic to reproduce it is, but here are my observations:

• It seems to happen when my cursor is above a floating window. If above a tiled window, the menu is fine
• When that happens, the menu will often appear in the top-left corner instead of under my mouse
• the wheel layout matches the correct layout if my mouse is on the bottom right even if the window will appear on top-left.
• the background of the window will be black, and not transparent.

ubuntu 19.04 awesome 1.4.3 compton 0.1~beta2+20150922 gnome-pie 0.7.2