Since 7b4a3d4c instead of subscribing after add code unsubscribed which is…

Since 7b4a3d4c instead of subscribing after add code unsubscribed which is illogical. Revert back. Credit Kaz.

Tests passing : https://nexedi.erp5.net/test_result_module/20200327-660269E/view?ignore_layout:int=1

See merge request !1092

product/ERP5/ERP5Site.py

@@ -2382,8 +2382,6 @@ class ERP5Generator(PortalGenerator):
       self.setupWorkflow(p)
       self.setupERP5Core(p,**kw)
       self.setupERP5Promise(p,**kw)
-      # subscribe portal_alarms
-      p.portal_alarms.subscribe()
 
     # Make sure the cache is initialized
     p.portal_caches.updateCache()

product/ERP5/mixin/timer_service.py

@@ -76,7 +76,7 @@ class TimerServiceMixin(object):
 
   security.declarePrivate('manage_afterAdd')
   def manage_afterAdd(self, *args, **kw):
-    self.unsubscribe()
+    self.subscribe()
     super(TimerServiceMixin, self).manage_afterAdd(*args, **kw)
 
   security.declarePublic('getCurrentNode')