Fix the animation glitch when NSSL adds and removes a HUN in the same frame. Bug: 185680162 Fixes: 213876313 Test: visual inspection when legacy pipeline initiates a group alert transfer Merged-In: I755fff6944da0699d9cb7e6b2456e4811f7888d5 Change-Id: I755fff6944da0699d9cb7e6b2456e4811f7888d5 (cherry picked from commit 357207971089bf3c91e27b6304c18e175f215cfb) (cherry picked from commit f87c4e7bdcb5ad811df96fd999955b3041d49e39) Merged-In:I755fff6944da0699d9cb7e6b2456e4811f7888d5