[automerger skipped] Fix the animation glitch when NSSL adds and removes a HUN in the same frame. am: 5d54f3c761 -s ours am: ee21aec75c -s ours

am skip reason: Merged-In I755fff6944da0699d9cb7e6b2456e4811f7888d5 with SHA-1 f87c4e7bdc is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17061641

Change-Id: I48dc0f68cb6fdb360ef1a50474b6045985e0129b