@Override
	public FilterState getFilterState() {
		FilterState state = new FilterState(this);
		state.put(EXCLUDED_TAGS_KEY, new TreeMap<>(excludedTags));
		return state;
	}
This differs from {@link #initializeTags()} in that this method will keep any excluded
tags when updating.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/filters/TagFilter.java