prefetcher: Don't prefetch when initializing block helpers if the block has already been cached. This causes prefetcher explosion because the way we navigate node paths.
prefetcher: Don't prefetch when initializing block helpers if the block has already been cached. This causes prefetcher explosion because the way we navigate node paths.

keybase/client,keybase/kbfs,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs