Merge "Fix the hidden task was removed before starting home" into udc-dev am: d4ef43a7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21918744



Change-Id: Ieacc1b4c93b8455e4a48ea3b7b4543500dbcbe82
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>