Is it possible to know beforehand if a change will make a profile confidential?
The other day, for reasons too complex to mention, I was looking at the profile for the mountaineer George Mallory (L717-KNM) who died in 1924 on the North Face of Mount Everest. Both his death and burial are marked with a display and standardised placename of "Nepal". According to my memory and to Wikipedia, the North Face was, and still is, in Tibet. (Nepal was a closed kingdom at this time and the boundary between Nepal and Tibet apparently runs across the top of Everest.)
I added a comment to the reasons for both death and burial to say "On Mount Everest. The North Face of Everest was in Tibet, not Nepal" or similar.
I did not alter the display or standardised placename values because I know that the status of Tibet is controversial and FamilySearch may choose discretion as the better part of valour at some point and make places in Tibet subject to confidentiality rules, just like Turkey, etc.
If I had altered the placenames to "Tibet" and that was confidential at the time of my alteration, would I have got a warning and would I have been able to back out the change to successfully revert to the non-confidential (if incorrect) value of Nepal?
I recognise that if Tibet isn't confidential now but became confidential in the future, then there's nothing I could do about George Mallory disappearing from FamilySearch.