Why assign-handler operation of logger can not run under batch mode using CLI

Issue

• While using JBoss EAP 6.3 in Standalone mode problem observed while adding logging configuration using CLI command in batch mode.

  [standalone@localhost:9999 /] batch 
  [standalone@localhost:9999 / #] /subsystem=logging/logger=aaa.bbb:add
  [standalone@localhost:9999 / #] /subsystem=logging/logger=aaa.bbb:assign-handler(name=FILE)
  [standalone@localhost:9999 / #] run-batch 
  {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => "JBAS011536: Handler FILE is already assigned."}}
  

  These CLI command works fine if we don't run the script in batch mode.