Annotator clean commit.
Issue 6725.
Issue 5456.
Issue 6756.
Fix reindexation bug.
Issue 4809.
Issue 6809: Caching fix on nested nested playlists & up.
Caching fix to avoid clearing cache of bookmark playlists.
Added generic error messaging, try/catch in playlists copy.
Handling when keywords params is nil.
Added fallback option for partial results render.
Fallback on create anon user, minor perf cleanup.