Wrong placement of the context menu in systray leads to autoselection, e.g. Abyss WebServer

Ticket deals with position of context menu of systray-icons.

Expected result:
When there is enough available space,
the coordinates of bottom right corner of the context menu shall be exactly where I clicked the systray icon with the mouse. Like in 2k3sp2.png

Observed result
The context menu opens at a wrong position.(and because of that as soon as I open it I will automatically chose an action from it)
0.4.10-RC-22-gd3cc081_vsAbyss2_11_8.webm
0.4.10-RC-22-gd3cc081_vsAbyss2_11_8.png
0.4.10-RC-22-gd3cc081.log

Side-note
The app opening the context-menu on RBUTTONDOWN already (and not on RBUTTONUP as good windows practice would recommend) is same on 2k3sp2 but does not lead to problems over there.

Ticket is related to CORE-9037 but no duplicate of it.

I know several apps which have systray-context-menus suffering from this auto-selection.