boolean owningSetIsUnmodified() {
		if (this.backingSetModificationNumber == this.owningSet.getModificationNumber()) {
			return true;
		}
		return false;
	}
Returns true iff the set attributes are defined for has not changed 
since the set was created.
Ghidra/Framework/Generic/src/main/java/ghidra/util/graph/attributes/Attribute.java