Prevent double tap on suggestions

Change-Id: I963d96b75cb5d464b6f91cf0824aee6e21cfeff0
Fixes: 31856366

src/com/android/settings/SettingsActivity.java

@@ -1269,7 +1269,14 @@ public class SettingsActivity extends SettingsDrawerActivity
     }
 
     public void startSuggestion(Intent intent) {
-        mCurrentSuggestion = intent.getComponent();
+        if (intent == null) {
+            return;
+        }
+        final ComponentName componentName = intent.getComponent();
+        if (componentName.equals(mCurrentSuggestion)) {
+            return;
+        }
+        mCurrentSuggestion = componentName;
         startActivityForResult(intent, REQUEST_SUGGESTION);
     }