mc_: How do you deal with "Document update confflict" in couchdb?

Im trying to restore document previous option version but it did not allow me

requires current _rev when you save the doc

Should I change it?

or just delete?

fetch current doc, make changes to doc (keeping _rev as-is), save doc

thanks, will try

mc_: another question - how can I prevent user to change "Virtual Receptionist" ?

is there anything I can insert to database to show error when user will try to change it?

So, I create a custom call flow for client, but every time when client click save on "Incoming Call Handling", it rewrite custom callflow =( Any way to prevent it?

MainOpenHours -> Custom-MainOpenHoursMenu and when client click save - MainOpenHours -> MainOpenHoursMenu