Possible Bug with \partcombine?

[Joshua Nichols]

I was recently typesetting a song, using part combine, from a hymnal. I ran into a problem: everytime I ran \partcombine, I found that "unterminated slur" and "cannot end slur," were common warnings. I was confused, and so I created this small snippet that should reproduce the same issues.

\version "2.18.2"

>

c' c' c' c'( c') c' c'( c')

}

two = {

b a b \partcombineApartOnce c'( b) a b( \partcombineApartOnce c')

}

\score {

\new Voice {

\partcombine \one \two }

}

Anybody else having the same problem?

Is it a bug? Or is it a amateur mistake (hoping for the latter).

Thanks,

Josh