Merge "Improving diags for containers disappearing while getting children" into sc-v2-dev am: 497a6ad826 am: 05e0d86c73

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15602554

Change-Id: I1c54a2fb06c0623bd3d9aff567ab9c2599fcf3ac