Possible memory leak when using Sticky Headers

[davideas]

All view holders are cached when bound and un-cached when recycled, you can get an unmodifiable Set with all bound view holders with getAllBoundViewHolders(). This technique works correctly when RecyclerView wants to reuse the ViewHolder, but the sticky view holders, created out of the RecyclerView, are not recycled, so they remain un-cached in the Set and it might generate a memory leak with a long scroll usage.

Version affected: from RC1 to 5.0.1.
Solution has already been identified: Those sticky view holders won't be cached anymore.

I will publish a 5.0.2 as soon as I finalize the code.