textSpanner - disable repeat of text on new line

[Bevan Broun]

Hi All

When using a text spanner I get the text repeated after a line break,
followed by new dashes. Can I disable getting the repeat of the text and
only get dashes on the new line? I have a case where the repeated text is
banging up against some other text and it would be clearer with just dashes
on the new line.

Thanks

\version "2.22.2"

mybar = { c4 d c d }
\score {
  \relative c' {
    \mybar \mybar \mybar
    \override TextSpanner.bound-details.left.text = "poco a poco
accelerando"
    c \startTextSpan d c d
    \mybar
    \mybar \break
    \mybar
    \stopTextSpan
    \tempo "Tempo I"
    \mybar \mybar \mybar \mybar
  }
}