Possible regression with changing time-signatures and order of input

[Thomas Morley]

Hi,

this just popped up in the german forum:

The two scores below return different output since 2.20.0. (see
attached) and warnings/errors are emitted for the first score:
warning: barcheck failed at: 1/4
  R1

programming error: Multi_measure_rest::get_rods (): I am not spanned!

With 2.18.2 it's the same.

\version "2.20.0"

takte = { \time 3/4 s2.*2 \time 4/4 s1*2 }

noten = {
  \repeat volta 2 { R2. }
  \alternative { { r2. } { r1  }
  }
  R1
}

\score { \new Staff << \takte \noten >> }
\score { \new Staff << \noten \takte >> }

Cheers,
  Harm