riak config effective fails when using bucket types

[oleksiyk]

I'm unable to dump effective configuration while using a bucket type (fs_chunks):

$ riak config effective
escript: exception error: bad argument
  in function  atom_to_list/1
     called as atom_to_list(<<"fs_chunks">>)
  in call from cuttlefish_effective:'-proplist_to_kvcpaths/2-fun-0-'/4 (src/cuttlefish_effective.erl, line 124)
  in call from lists:foldl/3 (lists.erl, line 1248)
  in call from cuttlefish_effective:'-proplist_to_kvcpaths/2-fun-0-'/4 (src/cuttlefish_effective.erl, line 125)
  in call from lists:foldl/3 (lists.erl, line 1248)
  in call from cuttlefish_effective:'-proplist_to_kvcpaths/2-fun-0-'/4 (src/cuttlefish_effective.erl, line 125)
  in call from lists:foldl/3 (lists.erl, line 1248)
  in call from cuttlefish_effective:process_advanced/2 (src/cuttlefish_effective.erl, line 97)