I've just tried out Git Extensions and found that is has strange behaviour if you pin it to the Windows taskbar, Any window that you open is not associated with the pinned icon.
This is annoying for me, because I use Windows Key+Num to switch to frequently used applications, i.e. if Git Extensions is the seventh pinned application then Windows Key+7 should switch to the currently open window, but instead it opens a new one. Is the behaviour by design? Could it be configurable?
This is on Windows 10, but I imagine the behaviour is the same on other Windows OSes.