Bar numbers and rehearsal marks

[Jordi Nadal]

Hi,
    
I found this bug looking the regression test for tied chords
(tie-chord.ly).
I'm using 2.7.39 (binary installer) on Debian unstable and none of this
bugs happened with 2.6.

Rehearsal marks and bar numbers collide on line beginning but one of them
is OK, depending of time signature: in lines beginning without key
signature, bar numbers are OK but not rehearsal marks. When the line
begins with a key sig., rehearsal marks are OK but not bar numbers.

{
 \key f \major % any key sig. unless 'c major'
 R1 \mark \default \break % barnumber misplaced, mark OK
 R1 \key c \major \mark \default \break % barnumber OK, mark misplaced
 R1
}    


Another bar numbering related collision happens with system brackets. I
think this is because bar numbers are a little right-shifted compared with
2.6.

notes = { R1 \break R1 }

\context StaffGroup <<
  \notes
  \notes
>>


Thank you very much, LlilyPond developers, for doing this intensive and hard
work and for this beautiful piece of software.


Jordi Nadal