Close open folders before moving to -1

Bug: 10955838
Change-Id: Ic6cbb67c4cf485fe1682c7cdd7de200a9227cff0
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index d09a4b8..182f217 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1922,6 +1922,8 @@
     }
 
     protected void moveToCustomContentScreen(boolean animate) {
+        // Close any folders that may be open.
+        closeFolder();
         mWorkspace.moveToCustomContentScreen(animate);
     }
     /**