@Override
	public void restoreTransientState(Object state) {
		SaveState ss = (SaveState) state;
		readDataState(ss);
	}
Read the data for the plugin upon deserialization; reads what should be
the current selection in the tree.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/ProgramTreePlugin.java