Do escalation recalculations with user_id 1.

app/models/ticket/escalation.rb

@@ -56,6 +56,7 @@ returns
       return true if !escalation_time
 
       self.escalation_time = nil
+      self.updated_by_id   = 1
       self.callback_loop   = true
       save
       return true
@@ -187,6 +188,7 @@ returns
     return if !changed?
 
     self.callback_loop = true
+    self.updated_by_id = 1
     save
   end