FIX: if `args` change a connector should update

app/assets/javascripts/discourse/components/plugin-connector.js.es6

@@ -1,3 +1,5 @@
+import { observes } from 'ember-addons/ember-computed-decorators';
+
 export default Ember.Component.extend({
 
   init() {
@@ -13,6 +15,12 @@ export default Ember.Component.extend({
     connectorClass.setupComponent.call(this, args, this);
   },
 
+  @observes('args')
+  _argsChanged() {
+    const args = this.get('args') || {};
+    Object.keys(args).forEach(key => this.set(key, args[key]));
+  },
+
   send(name, ...args) {
     const connectorClass = this.get('connector.connectorClass');
     const action = connectorClass.actions[name];

app/assets/javascripts/discourse/templates/discovery.hbs

@@ -21,7 +21,8 @@
   <div class="row">
     <div class="full-width">
       <div id="list-area">
-        {{plugin-outlet name="discovery-list-container-top"}}
+        {{plugin-outlet name="discovery-list-container-top"
+                        args=(hash category=category)}}
         {{outlet "list-container"}}
       </div>
     </div>