None.
allpartial on|off
If set to “on”, only the current cursor line is refreshed on window
change. This affects all windows and is useful for slow terminal lines.
The previous setting of full/partial refresh for each window is restored
with “allpartial off”. This is a global flag that immediately takes
effect on all windows, overriding the “partial” settings.
It does not change the default redraw behavior of newly created windows.
None yet.