#4826 RehearsalMark erases StaffSymbol and returns warnings

[Colin Campbell]

Thomas Morley thomasmorley65@gmail.com writes:

This code:

 \version "2.19.36"

 { c4 \mark \default }

returns several warnings of kind:
"warning: Found infinity or nan in output. Substituting 0.0"
and the StaffSymbol is not printed.

Present at least since 2.19.29 up to 2.19.40.
Works fine with 2.18.2

As soon as something space-consuming is added all works again.
These examples are all fine:

{ c4 \mark \default \breathe }
{ c4 \mark \default \bar "" }
{ c4 \mark \default s2. }

David Kastrup writes:

05ecaef595f5aff1de3f46edde90a0644a81e957 is the first bad commit
commit 05ecaef595f5aff1de3f46edde90a0644a81e957
Author: David Kastrup dak@gnu.org
Date: Sat Oct 4 01:12:55 2014 +0200

Issue 660: ossia staff doesn't stop at correct horizontal position

Version 2.19.16.