zerberus: long release samples do not play in their entirety
Steps to reproduce:
1. Download the attached test file.
2. Copy the .sfz file and sample folder to MuseScore's SoundFont directory.
3. Load the test .mscz file into MuseScore.
4. Go to "View" -> "Synthesizer" and click "Load from Score" to load the samples.
5. Play test #4 in the project.
Result: The release sample ("ride_cymbal_hit_F_1.ogg") only plays for about 3 seconds then quits.
Expected result: The sample should play in its entirety.