Just as the summary says. I presume that if a sensor is in the config but not in the system, the error path is not working properly. More info forthcoming...
Please see the downstream Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=867262 for more details.
fixed in commit 23813c9619dcb67f7509f9b79ffb9aeaec62908a because is duplicate of bug 9395.
yes, really a duplicate. *** This bug has been marked as a duplicate of bug 9395 ***