Quite awhile ago I changed my NIS 2009 idle timeout setting to 20 minutes.
Today I noticed it now says 15 minutes instead. Can this change itself, e.g., with an inline upgrade? The chances that I made the change myself and forgot are slim since (a) I keep a record of the few settings changes I make, and (b) it's unlikely I would have bothered changing it by just 5 minutes. I note that 15 minutes is NOT the default (it's 10), so this isn't an issue of the setting somehow reverting to default.
None of the other settings have changed.
No big concern here, just seems odd. Any ideas what may have happened?