Error when enable SAC(single active consumer) on a queue

[lishuaigit]

• Version:
  logstash-7.7.0

• Operating System:
  CentOS Linux release 7.1.1503

• Config File:
  input{
  rabbitmq{
  ...
  arguments => {"x-single-active-consumer"=> true }
  }
  }

• Sample Data:

• Steps to Reproduce:
  when started, i got warn message, it seems that the type of "x-single-active-consumer" is not bool.
  but my config is true not "true"

[2020-09-19T16:20:32,508][WARN ][logstash.inputs.rabbitmq ][main][d57ca799b361a4e4fd873b803117f80df523979f6d5c3c183faa9e437307ff14] Error while setting up connection for rabbitmq input! Will retry. {:message=>"#method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'x-single-active-consumer' for queue ‘xxx' in vhost '/': received 'true' but current is 'true', class-id=50, method-id=10)", :class=>"MarchHare::ChannelAlreadyClosed", :location=>"/data/server/logstash-7.7.0/vendor/bundle/jruby/2.5.0/gems/march_hare-4.1.1-java/lib/march_hare/exceptions.rb:121:in `convert_and_reraise'"}