Final volta bracket closed unexpectedly

[Dan Eble]

As I read Behind Bars, p.237, the bracket for volta 2 should not turn down at 
the end in this case.  Either way, it's strange that the outcome depends on 
line breaking.  If someone is willing to second this, I am willing to 
investigate it.
— 
Dan

\version "2.20.0"

\layout {
  ragged-right = ##t
}

piece = \fixed c' {
  \repeat volta 2 R1 \alternative { R1 R1 }
  \repeat volta 2 R1
}

\new Score \new Staff << \piece >>
\new Score \new Staff << \piece { s1*3 \break } >>