@Override
		public CheckedCachedSpaceMap fork() {
			return new CheckedCachedSpaceMap(fork(spaces));
		}
Construct a piece

@param data the trace-data access shim
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/pcode/exec/trace/AbstractCheckedTraceCachedWriteBytesPcodeExecutorStatePiece.java