[fluid-dev] fixed nasty bug dropping noteons

[Antoine Schmitt]

I fixed a nasty bug that dropped random noteon events:
In defsfont.C, the instrument zone's lokey was not initialized. So if 
a loaded soundfont did not have a lokey defined for an instrument 
zone, the lokey in RAM was set to whatever value was in memory at 
that moment. Thus all noteon below that random number were dropped on 
that channel/preset/instrument. It was nasty to find because it does 
not happen in the debugger (in VC++)...

Fixed in CVS.
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++ as