Draw folder leave-behind when opening folder in taskbar am: bb4de85c25

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13546997

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0174c405d0ab73e9cccc473e1f7f4134c621767e