[JW Lua] Page break bug leads to disappearing systems after calling undo/redo

[Jan Angermüller]

Jari,

I have discovered a weird page break bug in JW Lua.
Take the Finale default document or any empty document that has a score 
and a part. Then run the simple script below. Make sure the measure 
number you enter (the "8" below) is a measure where a new system starts 
in the score. It doesn't matter if the new system also starts in the part.

The script just adds a page break in measure 8 in the part.
Now click on undo and redo  ... and ups, the page break also appears in  
the score and leads to the systems starting with measure 8 vanishing!
Here is a screencam video:  https://youtu.be/lEZqDX0i8yM

local parts=finale.FCParts()
parts:LoadAll()
for p in each(parts) do
     p:SwitchTo()
         if (p.ID>0) then --if this is a part
             local meas=finale.FCMeasure()
             meas:Load(8) --this must be a measure number where a new 
system starts in the score
             meas.PageBreak=true
             meas:Save()
         end
     p:SwitchBack()
end

Maybe it has something to do with our email conversation from the 
2017/09/11 about "are FCMeasure properties part-dependent or global"? 
Anyone any ideas on this?

Jan
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