kbfs_ops: put edit-history TLFs in the by-favorites cache
kbfs_ops: put edit-history TLFs in the by-favorites cache

Otherwise, we can end up making it more than once.

Issue: KBFS-3204

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