Markup beyond the final barline

[Urs Liska]

Hi all, this is more out of curiousity.

Markups can't flow beyond the end of a score (horizontally) and widen the score if necessary:

\version "2.19.82"

{
  c'1 -"This is a long text that widens the score because it can't protrude."
  c'1
}

Is there a possibility to override this behaviour so that the score is just spaced naturally and the markup just goes as long as it needs?

Urs