Dynamics placed incorrectly around staff changes

[Chris Snyder]

I just discovered some incorrect behavior in how LP places dynamics 
around staff changes. It occurs when there's a hairpin followed by a 
dynamic marking and a staff change occurring at the same time as the 
dynamic marking. See the following snippet:

%% BEGIN SNIPPET
\version "2.13.9"

notesUpper = \relative c' {
        \dynamicUp c1\> |
        c |
        \change Staff = "lower" c\pp^"pp?" |
        c\p |
        \change Staff = "upper" \dynamicDown c1\p |
        c\<_"hairpin?" |
        c |
        \change Staff = "lower" c\mp |
}

\score { \new PianoStaff <<
        \new Staff = "upper" { \notesUpper }
        \new Staff = "lower" { s1*8 }
>> }
%% END SNIPPET

I'm guessing that this is due to LP's handling of the alignment of 
adjacent dynamic markings. The weird thing is that the behavior is 
different depending on the direction of the dynamics: \dynamicUp causes 
the dynamic text to be incorrectly placed, while \dynamicDown causes the 
hairpin to be placed incorrectly. I'm sure we could come up with a bunch 
of other weird permutations of this (what about dynamic text followed by 
a hairpin, etc.?).

This was especially weird for me because I discovered it while working 
with \RemoveEmptyContext staves: the dynamic I was expecting didn't 
appear at all!

Thanks,
Chris

--
Chris Snyder
Adoro Music Publishing
1-616-828-4436 x800
http://www.adoromusicpub.com