Invalid call to raise/reraise on brod/kpro error

[lud]

Kaffe tries to raise or reraise an error that is not an exception:

[error] 20:20:20.999 GenServer :"Elixir.Kaffe.GroupManager.my_group" terminating
** (ArgumentError) raise/1 and reraise/2 expect a module name, string or exception as the first argument, got: {:error, {{{:badmatch, {:error, :unknown_topic_or_partition}}, [{Kaffe.GroupMember, :init, 1, [file: 'lib/kaffe/consumer_group/subscriber/group_member.ex', line: 80]}, {:gen_server, :init_it, 2, [file: 'gen_server.erl', line: 423]}, {:gen_server, :init_it, 6, [file: 'gen_server.erl', line: 390]}, {:proc_lib, :init_p_do_apply, 3, [file: 'proc_lib.erl', line: 226]}]}, {:child, :undefined, :group_member_my_group_MyTopic, {Kaffe.GroupMember, :start_link, [:my_group, "my_group", #PID<0.6728.0>, "MyTopic"]}, :permanent, false, 5000, :worker, [Kaffe.GroupMember]}}}