Yes, I checked, and you are right. Existing text must be replaced with at least one character or it will come back. I'll fix it for 4.8. Several other Notes enhancements are coming with 4.8, also.
Developer, Bible Analyzer
But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness. (Rom 4:5 AV)