private void stateChanged(FilterState state) {
		// see if we need to update our buttons' enablement		
		boolean hasChanges = hasStateChanged(state);
		updateButtons(hasChanges);
	}
Returns true if any of the filters managed by this dialog are not in their default state.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/filters/AncillaryFilterDialogComponentProvider.java