Change detection notification but no change made

We seem to be receiving change notification emails, when no config has been saved or change made.  The only visual difference shown in the email are the lines concerned with last login.

We are using syslog to automate this process, which seemed to be preferred over using snmp which we had assumed was the way to do this.

We had also assumed that only saving/writing the config which stimulate this automation process.  Are there any other circumstances that would trigger a change notification other, as we don't know why this might be happening.

Cheers