Fooling \partcombine in lilypond 2.4.2

[Alexandre Beneteau]

Hello,

I have found a case where \partcombine does not print the second
voice...
Having tried a lot of combinaisons, I have founded that it is the
conjunction of the R1 in the beginning *and* the decrescendo following
which produce this unexpected result.

Hoping this will be usefull...
Thanks,

        Alex.

P.S. : Using Pedro's package of lily 2.4.2 in debian unstable.

code snippet :

\include "italiano.ly"

partA = \transpose do re' {\relative do' {
  R1
  do1 \> ~
  do \!
  do
}}
partB = \transpose do re' {\relative do {
  R1
  la'1 \> ~
  la \!
  la
 }}

\score {
  \partcombine \partA \partB
}