Interesting!
Thanks Jiggimi! also noted your reply concerning the "Ed Mastery" book by Mitch Lucas.
Since I am over the hill (age) so to speak, vi, vim, emacs, etc present a learning curve that I am hesitant to participate in, therefore since I am proficient with "ed" and "nano", looks like I'll edit config files with "ed" to be sure from now on.
PLEASE this entry is not intended to start an editor war.
Also, I wonder if Nano's maintainer is aware of this issue?
_