Arpeggio overlaps barline

[Trond]

> I'm not top posting

I have an arpeggio that overlaps the barline. Is it a bug?

\version "2.12.2"

\score {
    \new PianoStaff <<
        \new Staff {
            e'1 |
            d'1~\arpeggio |
            c'1~\arpeggio |
        }
        \new Staff {
            \clef bass
            a1
            \set PianoStaff.connectArpeggios = ##t % required to show problem
            <<d,,2\arpeggio d,>> d2 % not ok (overlaps barline)
            <<g,,2\arpeggio g,>> g2 % ok
        }
    >>
}