I press CTRL+9 to make the Command Line disappear while drawing. When I plot (or when doing a plot preview) , the Command Line appears again by itself. So I always have to turn the Command Line off manually after each plot - which is annoying.
The bug still happens; - if Dynamic Input is turned off or on - if I plot to a real device or in PDF - if the Cammand Line Palette i docked or floating.
This is not an issue in AutoCAD 2012 so I guess it has to do with the new way they programmed the revamped Command Line palette in 2013.