#1865 tempo indication can not be attached to spacers

[Anonymous]

Originally created by: *anonymous

Originally created by: brownian.box@gmail.com

Reported by Valentin Villenave,
http://lists.gnu.org/archive/html/bug-lilypond/2011-09/msg00037.html :

%----------------8<---------------------
\version "2.15.9"

{
  s1
  \tempo "Waldo"
  s1
}
%----------------8<---------------------

Reinhold commented:
%----------------8<---------------------
The issue is that the moment after the \tempo command does not have any grobs where the tempo could be attached to. As soon as you change the s1 to a note or rest, or if you have clef/key/timesig change at the same moment as the \tempo, the tempo mark can be reparented. But it seems that the engraver misses the case that there are no other grobs at the same moment as the \tempo change. In that case, the tempo mark should be reparented to the barline...
%----------------8<---------------------

[Google Importer]

Originally posted by: k-ohara5...@oco.net

Workaround:
\override Score.MetronomeMark #'non-break-align-symbols =
#'(multi-measure-rest-interface paper-column-interface)

[Google Importer]

Originally posted by: k-ohara5...@oco.net

The original example no longer shows the problem, due to change in the defaults.

The problem appears, as the tempo mark disappears, if we ad a line
  \override Score.MetronomeMark #'non-break-align-symbols = #'()

The documentation would lead us to believe that, with this override, the tempo mark appears over the bar-line.