Mark-bar number-ChoirStaff and tempo-mf clashes

[Ferenc Wagner]

Hello,

I could probably overcome these clashes but thought to point
them out in case you do not know about them.  Why do not
these objects know about each other?

1. sopMusic = \notes { \tempo 4 = 96 cis''8^\mf ... }
   results in

MorningTide1.png
Description: tempo-mf clash

2. later,  \break \mark "A" cis''4. results in

MorningTide2.png
Description: mark-bar number-ChoirStaff clash

where the score block is set up like

\score { \notes
  \context StaffGroup <<
    \property Score.automaticMelismata = ##t
    \addlyrics
      \context Staff = Soprano {
        \property Staff.instrument = "Soprano"
        \property Staff.instr = "S"
        \key a \major \sopMusic
      }
      \context Lyrics = sopLyrs { \sopWords }
    \addlyrics
      \context Staff = Alto {
        \property Staff.instrument = "Alto"
        \property Staff.instr = "A"
        \key a \major \altoMusic
      }
      \context Lyrics = altoLyrs { \altoWords }
  ...
  >>
  \paper {
    \translator {
      \RemoveEmptyStaffContext minimumVerticalExtent = #'(30 . 3)
    }
  }
}

Best wishes,
Feri.