Do not update  pointer postion  when stack is going to collapse

Bug: 232293580
Test: atest SystemUITests
Test: video at https://drive.google.com/file/d/1Yjs7AzTeI_Zp764CPF9d6e7zI-XRvYX4/view?usp=sharing
Change-Id: I3131a8f32e088573e8e4e8401b6cc279e73bef87
2 files changed