Ensure FLAG_IN_APP is correctly set after launcher-restart. am: 43700f61f7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22195243

Change-Id: I71e90d16b58de5f99db0838219e9624b06d77645
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>