Collision: tie and nothead in different voices

[Malte Meyn]

Hi list,

this collision is present in all stable versions from 2.18.2 to 2.24.0:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.24.0"

\relative {
  g'2
  << { <a f'> <g d'> } \\ { c~ c4 b4 } >>
}

\relative << { a'2~ a8 } \\ { c2~ c8 } >>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Is there any workaround apart from \shape? And is this a 
known/documented bug?

Cheers,
Malte