Merge "Add null check for testing if change is recent task" into udc-qpr-dev am: da53aded

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23919049



Change-Id: Ic33e7ddce4ce15618bfc41b8da639a9a62693ada
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>