@Override
	public void clear() {
		for (DBTraceAddressSnapRangePropertyMapSpace<T, DR> space : memSpacesView) {
			space.clear();
		}
	}
{@inheritDoc}

Note this counts entries in memory spaces only. No register spaces are included.
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/map/DBTraceAddressSnapRangePropertyMap.java