final bar line only to have a SpanBar

[Klaus Föhl]

Hello,

When using ChoirStaff, bar lines do not span which is intentional.
Short example:

\version "2.12.3"
\new ChoirStaff <<
  \new Staff { c'1 c'1 \bar "|." }
  \new Lyrics \lyricmode { some Text }
  \new Staff { c'1 c'1 } >>

But one often finds that the final bar line (only) is spanning all staff lines.
I have come up with the following:

\version "2.12.3"
\new StaffGroup <<
  \new Staff { \override Staff.BarLine #'allow-span-bar = ##f
             c'1 c'1
             \override Staff.BarLine #'allow-span-bar = ##t
             \bar "|."
             }
  \new Lyrics \lyricmode { some Text }
  \new Staff { c'1 c'1 } >>

While this seems to work, it is somewhat non-intuitive using StaffGroup
instead of ChoirStaff. Is there a better way of achieving this?

And is it worth having a snippet for this? There is a snippet for the
Mensurstrich layout, but this does not help for standard ChoirStaff.

Best regards

Klaus

P.S. "You seem to be top-posting. Don't do that." due to Lilypond code...