Fix crash in recent apps

Bug #5332922

Change-Id: I223cdd306c6872cc47c53456da195c0d83c8f8bd

Author: mikejurka

packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java

@@ -589,7 +589,8 @@ private void refreshApplicationList() {
         if (mActivityDescriptions.size() > 0) {
             if (DEBUG) Log.v(TAG, "Showing " + mActivityDescriptions.size() + " apps");
             updateUiElements(getResources().getConfiguration());
-            final ArrayList<ActivityDescription> descriptions = mActivityDescriptions;
+            final ArrayList<ActivityDescription> descriptions =
+                new ArrayList<ActivityDescription>(mActivityDescriptions);
             loadActivityDescription(descriptions.get(0), 0);
             applyActivityDescription(descriptions.get(0), 0, false);
             if (descriptions.size() > 1) {