Re: Issue 409 in lilypond: collision tie and time signature

[lilypond]

Comment #4 on issue 409 by bordage.bertrand: collision tie and time  
signature
http://code.google.com/p/lilypond/issues/detail?id=409

Can we consider this as being a bug ?
Many famous editors assume this collision, especially in modern or  
contemporary music.
For example, I just saw this in a score published by Alphonse Leduc :

\relative c'' <<
        << { <e g>2 <d f> <e g> } \\ { <c d>1~ \time 2/4 <c d>2 } >>
        \new Staff { b4 g8 g b4 a c2 }