bar number positioning bug

[Tuukka Verho]

In 2.7.39 the bar number placement behavior is rather odd. When there is no 
key signature, bar numbers are typeset in the left hand side of the clef as in 
previous versions, but otherwise they are placed next to the key signature. 
The following code demonstrates the issue: 
 
\version "2.7.39" 
 
\score { 
        \relative c' { 
                \key g \major 
                \repeat unfold 10 {c4 c c c} 
                \key c \major 
                \repeat unfold 10 {c4 c c c} 
        } 
} 
 
The problem shows up quite clearly in the Mozart example: 
 
http://lilypond.org/doc/v2.7/input/mutopia/W.A.Mozart/mozart-hrn-3-page1.png 
 
 
 
Thanks to the developers for their effort! 
 
- Tuukka