input/regression/musicxml/41g-PartNoId.xml

[Dan Eble]

I haven't worked with MusicXML, but I notice that this test apparently contains 
a whole-measure rest, yet the ly generated in 
input/regression/musicxml/out-test/41g-PartNoId.ly by "make check" does not.  
It seems to have been this way as far back as 2.12[1], but I question whether 
it is correct.
— 
Dan

[1] https://lilypond.org/doc/v2.12/input/regression/musicxml/collated-files.pdf