am f759824: Merge change 1086 into donut

Merge commit 'f7598245489c6d28c2673acd269ada2e6e834065'

* commit 'f7598245489c6d28c2673acd269ada2e6e834065':
  Fixes regression introduced in Cupcake: a couple of adapters were using setTag() to store their own data, which could interfere with the use of setTag() made by the applications. The fix is quite simple an rely on a WeakHashMap to store the holders within the adapters; using the Views as the keys of the map.