Ensure changing quantities outdates plans

src/client/models/site/craft_page.coffee

@@ -90,4 +90,5 @@ module.exports = class CraftPage extends Observable
 
     _onWantChanged: ->
         @triggerPropertyChange "isDirty", @_isDirty, true, ->
+            @_isDirty = true
             if @want.isEmpty then @triggerPropertyChange "currentPlan", @_currentPlan, null

src/client/site/craft_page/craft_page_controller.coffee

@@ -52,7 +52,6 @@ module.exports = class CraftPageController extends PageController
 
     onRemoveFromWant: (item)->
         @model.want.remove item
-        @onWantInventoryChanged()
 
     onSampleClicked: (event)->
         $el = $(event.target)