message: Invalidated text cached_metrics when returning a mutable slice of textFragment
  Cleanup of .  Thank you, !
diff: @@ -219,6 +219,7 @@ impl Text {
  /// Returns a mutable slice with all fragments.
  pub fn fragments_mut(&mut self) -> &mut [TextFragment] {
  + self.invalidate_cached_metrics();
  &mut self.fragments
  }
  