Using the multiple Concurrency Policies in an one action

[freeyssu]

Hi team.

ST2 version 3.8
I tried to use two mixed Concurrency policies in an one action. However it seems like only concurrency.attr policy does work.
Does Concurrency policy support only one configuration per action?

See this.

This is the action level concurrency policy

name: example.concurrency
description: concurrency for the action. expected more than two actions should be delayed
enabled: true
resource_ref: example.action
policy_type: action.concurrency
parameters:
  action: delay
  threshold: 2

This is the action.attr concurrency policy

name: example.concurrency.attr
description: concurrency for the action attr. expected one action for one host should be run
enabled: true
resource_ref: example.action
policy_type: action.concurrency.attr
parameters:
  action: cancel
  threshold: 1
  attributes:
    - host_name