\RemoveAllEmptyStaves, TabStaff and \set commands [was: TabStaff.keepAliveInterfaces]

[Malte Meyn]

Am 02.11.19 um 09:39 schrieb Malte Meyn:
Seems like the \set TabStaff… partly 
revives the TabStaff from being hidden.

I just realized that other \set commands (not involving 
keepAliveInterfaces) show the same problem:

\version "2.19.83"

bla = { \repeat unfold 100 e'4 }
git = {
  \set TabStaff.middleCPosition = 0
  R1*10
  \repeat unfold 60 c'4
}

<<
  \new Staff \bla
  \new Staff \with { \RemoveAllEmptyStaves } \git
  \new TabStaff \with { \RemoveAllEmptyStaves } \git
>>