[JW Lua] Weird accidental behaviour

[Jan Angermüller]

Jari et al.,

here is a weird accidental movement behaviour.

When I use the Accidental Mover tool (or FCAccidentalMod -> 
HorizontalPos) and change the horizontal position to a new value, the 
accidental jumps onto the notehead (!) and takes the notehead as a new 
reference position.
This Finale document was created with Fin2002a.
The normal behaviour is that the change of the horizontal position keeps 
the reference position (i.e. far before the notehead) and moves only 
according to the new value.

See this video:
First the weird behaviour, then the normal behaviour (in the Fin2014 
default document):
https://www.youtube.com/watch?v=wRLsU40Kog8

While making this video I also noticed, that sometimes the anchor point 
changed (!).
So maybe there used to be a flag in Finale (<=2002) which changed the 
alignment point of the accidental.
Have a look at the 23. second in this video: I click on the anchor point 
and it suddenly jumps from the right of the accidental to the left of 
the accidental.
https://www.youtube.com/watch?v=6EjOfAlhwMM#t=20s
When the anchor point jumps (but this only happens very seldom, and I 
can't reproduce it) and I check the FCAccidentalMod it suddenly returns 
a -54 EVPU value for HorizontalPos. While by default (when the anchor 
point hasn't jump before) it returns no existing accidental mod and thus 
a 0 EVPU value.

I haven't found a way to detect or to remove this behaviour yet. 
Probably it's not even possible.
Attached is the document with the measure from the video where this 
weird thing happens.

Any ideas?
The only thing that came to mind: it was created with Fin2002a.
Maybe this was a bug in Fin2002a which they fixed in 2002b?
Or this was something available before 2002, but not supported anymore.

Best,
Jan
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