\version "2.13.45"


\header {
  texidoc ="If the apart state is forced after unisilence and one voice still
has a rest going on, that voice needs to display a new multi-measure rest."
}

\layout { ragged-right = ##t }

mI = \relative c'' {
  d2 r |
  R1 |
  \partcombineApart r4 f2.~ |
  \partcombineAutomatic
  f1 |
}
mII = \relative c'' {
  b2 r |
  R1*2 |
  f1 |
}

\score {
  \new Staff \partcombine \mI \mII
}