Comment 1 for bug 1381632

The suspect commits are
2fd1d4a7 Merge pull request #758 from TheMue/api-implementation-guide
4a5cd97 Merge pull request #907 from rogpeppe/016-fix-apiserver-test
e5959d4 Merge pull request #847 from axw/lp1360605-maas-zones
41df824 Merge pull request #903 from dimitern/fwnode-mode-disables-firewaller
6ffffa3 Merge pull request #744 from gabriel-samfira/reboot-apiclient
ac2a103 Merge pull request #899 from wwitzel3/ww3-rsyslog-ip-sans

and 41df824 looks like it is changing the firewaller.