Fixed a bug with the thang component edit view: labels of new components not showing up.

app/models/SuperModel.coffee

@@ -90,7 +90,8 @@ module.exports = class SuperModel extends Backbone.Model
 
   getModelByOriginalAndMajorVersion: (ModelClass, original, majorVersion=0) ->
     _.find @models, (m) ->
-      m.get('original') is original and m.get('version').major is majorVersion and m.constructor.className is ModelClass.className
+      return unless v = m.get('version')
+      m.get('original') is original and v.major is majorVersion and m.constructor.className is ModelClass.className
 
   getModels: (ModelClass) ->
     # can't use instanceof. SuperModel gets passed between windows, and one window

app/treema-ext.coffee

@@ -359,8 +359,8 @@ class LatestVersionReferenceNode extends TreemaNode
     return @modelToString(docOrModel) if docOrModel instanceof CocoModel
     return 'Unknown' unless @settings.supermodel?
     m = CocoModel.getReferencedModel(@getData(), @schema)
-    urlGoingFor = m.url()
-    m = @settings.supermodel.getModel(urlGoingFor)
+    data = @getData()
+    m = @settings.supermodel.getModelByOriginalAndMajorVersion(m.constructor, data.original, data.majorVersion)
     if @instance and not m
       m = @instance
       m.url = -> urlGoingFor

app/views/editor/component/ThangComponentsEditView.coffee

@@ -362,8 +362,8 @@ class ThangComponentsObjectNode extends TreemaObjectNode
     return 0 if not (a or b)
     return 1 if not b
     return -1 if not a
-    return 1 if a.attributes.system > b.attributes.system
-    return -1 if a.attributes.system < b.attributes.system
-    return 1 if a.name > b.name
-    return -1 if a.name < b.name
+    return 1 if a.get('system') > b.get('system')
+    return -1 if a.get('system') < b.get('system')
+    return 1 if a.get('name') > b.get('name')
+    return -1 if a.get('name') < b.get('name')
     return 0