Merge "Fix NPE in FolderPagedView" into udc-dev am: 6597d5ec3c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23298096

Change-Id: If77e78b473fcccb3c806a77b3e5bff365892fd64
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>