Tweak resizer onDrag handler

assets/javascripts/views/layout/resizer.coffee

@@ -39,10 +39,10 @@ class app.views.Resizer extends app.View
     return
 
   onDrag: (event) =>
-    return if @lastDrag and @lastDrag > Date.now() - 50
     value = event.pageX
-    @lastDrag = Date.now()
     @lastDragValue = value
+    return if @lastDrag and @lastDrag > Date.now() - 50
+    @lastDrag = Date.now()
     @resize(value, false)
     return