FIX: Don't save placeholder text if description is empty

assets/javascripts/discourse/controllers/admin-plugins-explorer.js.es6

@@ -58,6 +58,7 @@ export default Ember.Controller.extend({
   save() {
     const self = this;
     this.set('loading', true);
+    this.set('selectedItem.description', '');
     return this.get('selectedItem').save().then(function() {
       const query = self.get('selectedItem');
       query.markNotDirty();