Simultaneous accents broken in drum mode.

[Luke Tidd]

% simultaneous above+below bar staff accent works in non-drum mode:
\relative c' {
  <e_\accent d'^\accent>1
}

% unaware of any workaround to make this work in drum mode:
\drums {
  <bd hh>1^>_>

  <bd_\accent hh^\accent>1
}

% example of usage (see first note of second bar):
https://i.imgur.com/N28jCYt.png