@Override
	void putFreeBlock(int index, int nextFreeIndex) throws IOException {

		versionBufferIfNeeded(index);

		super.putFreeBlock(index, nextFreeIndex);

		if (changeMap != null) {
			changeMap.bufferChanged(index, true);
		}
	}
Create a new empty file for pre-save use.
@param presaveFile pre-save file
@param bufferSize buffer size
@throws IOException if an I/O error occurs during file creation
Ghidra/Framework/DB/src/main/java/db/buffers/LocalManagedBufferFile.java