spanned bar lines on left and right side of multi stave notes

[Matthias Wirtz]

Hi,

I'm doing pretty much the same thing as shown in the example:
<http://lilypond.org/doc/v2.11/input/mutopia/F.Schubert/morgenlied.png>

I have three staffs and there is a spanned bar line on the left side of each row
over all staffs. The following bar lines in the middle of the line do not span
over all staffs. That is fine because I have lyrics between the first and second
staff.

But on the right side I would like to have the same spanned bar line which I
have on the left side again.

I exprimented a little bit with:
\override Staff.SpanBar #'before-line-breaking = ##t

But couldn't get it working. By the way I'm not experienced with lilypond so
please be elaborate in your answer. Thanks.