LigatureBracket extent

[Simon Albrecht]

Hello everybody,

is it just me or is there no reason why these two should have different 
output?

\version "2.19.82"
<<
  \new Staff {
    \override NoteColumn.horizontal-shift = 1
    \override LigatureBracket.direction = #DOWN
    \[ c'1 d' \]
  }
  \new Staff {
    \voiceTwo
    \[ c'1 d' \]
  }
>>

Best, Simon

Screenshot from 2018-07-18 12-37-23.png
Description: PNG image