Merge changes If981a380,I48a8f882,I4b248b2f,Id9e6ce2a,Ib5239325, ... into nyc-dev

* changes:
  Fixed a bug where custom notifications were invisible
  Fixed a transformation error when fading in views
  Fixed animation jank in notification groups
  Fixed a bug where the single line view would be invisible
  Fixed a bug where huns could be invisible
  Fixed a crash with notification children