Volta difference 1.2 and 1.3

[Roy . Rankin]

First let me say thanks that the known issues which was blocking me
going to 1.3 are now cleared.

However, there is still a problem with voltas in 1.3.3[678] which does
not happen in 1.2.17. The volta spanner bar does not appear in the
second ending  when I use 1.3. (ly file below) I have traced the
problem to the fact that the last measure does not contain all the
counts. The work-around is to add an s2 to the second alternative.

 

%\version "1.3.4"
tune = \notes\relative c' {
           \repeat volta 2 { c2 d }
           \alternative { { e1 } {  e2 }}
       }

\score {

    <
            \context Staff = "S1" { \$tune }
    >
    \paper {
        \translator { 
                \StaffContext
                \consists Staff_margin_engraver; 
        }
   }
}