Cloud we add ‘this.itemCount = 0;’ in internalInitialize（246 line in org.eclipse.serializer.persistence.binary.types.BinaryStorer

[useryq8]

the original issue is track in eclipse-serializer/serializer#111

for high performance , we found that maybe the microstream cleanup code needs some update,
the symptom is that the add/update performance become slower than just starting, so we suspect that maybe some cleanup does not do completely， so we do this update to source code
@hg-ms