20170429030206
https://hg.mozilla.org/releases/comm-esr52/rev/2704ca6d39279a0f844e7f17df7c6276f1b3a5b3
https://hg.mozilla.org/releases/mozilla-esr52/rev/894ba3787a8f10d8a89805d0c66c8a0d664a6bd9