plugins: set selection in availables correctly (roma)

(cherry picked from commit 5a6c7dea3e63d6a86bd2a94af9dcce4e4ca6bb76)

platform/platform-impl/src/com/intellij/ide/plugins/AvailablePluginsManagerMain.java

@@ -90,14 +90,13 @@ public class AvailablePluginsManagerMain extends PluginManagerMain {
 
   @Override
   public void reset() {
-    super.reset();
-
     UiNotifyConnector.doWhenFirstShown(getPluginTable(), new Runnable() {
       @Override
       public void run() {
         loadAvailablePlugins();
       }
     });
+    super.reset();
   }
 
   @Override