'multipathd show config' shows duplicate device sections

Issue

• We have added a customized device section for IBM 2145 LUNs in /etc/multipath.conf file, but after a reload of multipathd service, 'multipathd show config' shows duplicate device sections:

  $ multipathd show config    
  [...]
  device {
          vendor "IBM"
          product "^2145"
          path_grouping_policy "group_by_prio"
          path_checker "tur"
          features "1 queue_if_no_path"
          hardware_handler "0"
          prio "alua"
          failback immediate
          rr_weight "uniform"
          no_path_retry 4
  }
  [...]
  device {
          vendor "IBM"
          product "^2145"
          path_grouping_policy "group_by_prio"
          path_selector "service-time 0"
          path_checker "tur"
          features "0"
          hardware_handler "0"
          prio "alua"
          failback immediate
          rr_weight "uniform"
          no_path_retry "fail"
          rr_min_io_rq 1
  }
  

• Which one of the above two device sections are actually used by multipathd?