diff --git a/lib/HistoryBuffer.coffee b/lib/HistoryBuffer.coffee
index 77defec7..0d99e3c0 100644
--- a/lib/HistoryBuffer.coffee
+++ b/lib/HistoryBuffer.coffee
@@ -152,6 +152,8 @@ class HistoryBuffer
     if @buffer[o.creator][o.op_number]?
       throw new Error "You must not overwrite operations!"
     @buffer[o.creator][o.op_number] = o
+    @number_of_operations_added_to_HB ?= 0 # TODO: Debug, remove this
+    @number_of_operations_added_to_HB++
     o
 
   removeOperation: (o)->
diff --git a/lib/Types/StructuredTypes.coffee b/lib/Types/StructuredTypes.coffee
index 8af9486a..c6e6fc1a 100644
--- a/lib/Types/StructuredTypes.coffee
+++ b/lib/Types/StructuredTypes.coffee
@@ -395,8 +395,6 @@ module.exports = (HB)->
     } = json
     new Replaceable content, parent, uid, prev, next, origin
 
-
-
   types['ListManager'] = ListManager
   types['MapManager'] = MapManager
   types['ReplaceManager'] = ReplaceManager