Volta bracket begins at wrong place

[Bertalan Fodor]

%BUG: Volta Bracket in a ChordNames context begins at wrong place.

\version "2.5.31"


staffOne = \new Staff  {
    \set Staff.voltaOnThisStaff = ##t
    \relative c' {        
        \repeat "volta" 2 {
        c4 c c c
        }
        \alternative {
            { d4 d d d }            
            { e4 e e e }
        }                
    \bar "|."
    }

}

harmonies =  \chords {    
    \set voltaOnThisStaff = ##t
    \override VoltaBracket #'minimum-space = #0
    c1 g c
}

\score {
    <<
        \harmonies
        \staffOne
    >>
    
    \midi {
    }

    \layout  {
    }
}

\paper {
}