collisions - bug or no bug?

[Klaus Föhl]

> bottom-posting

Hello,

Minimal code 1: notes g and a collide

\version "2.15.42"
\new Staff 
<<
  { \new Voice \voiceOne c'' } 
  { \new Voice \voiceOne g' }
  { \new Voice \voiceTwo a' }
>>

Minimal code 2: fermata prints on top on note

\version "2.15.42"
\new Staff 
<<
  { \new Voice \voiceOne d'1 } 
  { \new Voice \voiceTwo a'1_\fermata }
>>
Explanation for first report: came across while noting some choir music
with Tenor and Bass within the same staff, \voiceOne and \VoiceTwo
then at some point having Bass I and II. Not wanting to note chords
as with a different formatting individual Bass I and Bass II voices
needed. Also not wanting to introduce \voiceThree as unsplit Bass
notes should still merge. Hence simultaneous notes within \voiceOne.

Regards

Klaus