Trying to better get around mongoose stripping out empty i18n objects.

app/models/CocoModel.coffee

@@ -274,7 +274,7 @@ class CocoModel extends Backbone.Model
     schema ?= @schema() or {}
     addedI18N = false
     if schema.properties?.i18n and _.isPlainObject(data) and not data.i18n?
-      data.i18n = {'-':'-'} # mongoose doesn't work with empty objects
+      data.i18n = {'-':{'-':'-'}} # mongoose doesn't work with empty objects
       sum += 1
       addedI18N = true
 

app/treema-ext.coffee

@@ -266,6 +266,11 @@ class InternationalizationNode extends TreemaNode.nodeMap.object
     res = super(arguments...)
     res = (r for r in res when r[0] isnt '-')
     res
+    
+  populateData: ->
+    super()
+    if Object.keys(@data).length is 0
+      @data['-'] = {'-':'-'} # also to get around mongoose bug
 
   getChildSchema: (key) ->
     #construct the child schema here