nodelist: fix bug in simplified boolean expression
nodelist: fix bug in simplified boolean expression

If K1 <= K2, also check if K2 is the BaseKey. If so, K1 can only be equal
but not less than K2.
tectronics/scalaris,seyyed/scalaris,digshock/scalaris,seyyed/scalaris,digshock/scalaris,tectronics/scalaris,digshock/scalaris,seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,tectronics/scalaris,digshock/scalaris,seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,digshock/scalaris,digshock/scalaris,tectronics/scalaris,seyyed/scalaris,digshock/scalaris,tectronics/scalaris