CRS326 wrong interface default-name?

Can anyone please comment why the ROS7 default-config of CRS326-24G-2S+ contains the lines below? Please notice the renaming of the interfaces.
After a reset with “no default-configuration” there are no such lines and if I attach a cable to port 2 it shows ether2 correctly as active (the same with default-configuration).
What is going on here?

/interface ethernet
set [ find default-name=ether19 ] name=ether1
set [ find default-name=ether20 ] name=ether2
set [ find default-name=ether21 ] name=ether3
set [ find default-name=ether22 ] name=ether4
set [ find default-name=ether23 ] name=ether5
set [ find default-name=ether24 ] name=ether6
set [ find default-name=ether1 ] name=ether7
set [ find default-name=ether2 ] name=ether8
set [ find default-name=ether3 ] name=ether9
set [ find default-name=ether4 ] name=ether10
set [ find default-name=ether5 ] name=ether11
set [ find default-name=ether6 ] name=ether12
set [ find default-name=ether7 ] name=ether13
set [ find default-name=ether8 ] name=ether14
set [ find default-name=ether9 ] name=ether15
set [ find default-name=ether10 ] name=ether16
set [ find default-name=ether11 ] name=ether17
set [ find default-name=ether12 ] name=ether18
set [ find default-name=ether13 ] name=ether19
set [ find default-name=ether14 ] name=ether20
set [ find default-name=ether15 ] name=ether21
set [ find default-name=ether16 ] name=ether22
set [ find default-name=ether17 ] name=ether23
set [ find default-name=ether18 ] name=ether24

Where do you see this ? Exactly how did you get this output ?
What ROS version ?

I have 2 CRS326-24G-2S+ and none show this in the default script.

# 2024-09-05 20:00:46 by RouterOS 7.15.1
# software id = J8K8-GJG5
#
  script: #| Welcome to RouterOS!
          #|    1) Set a strong router password in the System > Users menu
          #|    2) Upgrade the software in the System > Packages menu
          #|    3) Enable firewall on untrusted networks
          #| -----------------------------------------------------------------------------
          #| Switch mode:
          #|  * all interfaces switched;
          #| LAN Configuration:
          #| Login
          #|     admin user protected by password
          
          :global defconfMode;
          :log info "Starting defconf script";
          #-------------------------------------------------------------------------------
          # Apply configuration.
          # these commands are executed after installation or configuration reset
          #-------------------------------------------------------------------------------
          :if ($action = "apply") do={
            # wait for interfaces
            :local count 0;
            :while ([/interface ethernet find] = "") do={
              :if ($count = 30) do={
                :log warning "DefConf: Unable to find ethernet interfaces";
                /quit;
              }
              :delay 1s; :set count ($count +1); 
            };
           /interface bridge
             add name=bridge disabled=no auto-mac=yes protocol-mode=rstp comment=defconf;
           :local bMACIsSet 0;
           :foreach k in=[/interface find where !(slave=yes   || passthrough=yes || type=loopback || name~"bridge")] do={
             :local tmpPortName [/interface get $k name];
             :if ($bMACIsSet = 0) do={
               :if ([/interface get $k type] = "ether") do={
                 /interface bridge set "bridge" auto-mac=no admin-mac=[/interface get $tmpPortName mac-address];
                 :set bMACIsSet 1;
               }
             }
               :if (([/interface get $k type] != "ppp-out") && ([/interface get $k type] != "lte")) do={
                 /interface bridge port
                   add bridge=bridge interface=$tmpPortName comment=defconf;
               }
             }
            /ip address add address=192.168.88.1/24 interface=bridge comment="defconf";
           :if (!($keepUsers = "yes")) do={
             :if (!($defconfPassword = "" || $defconfPassword = nil)) do={
               /user set admin password=$defconfPassword
               :delay 0.5
               /user expire-password admin 
             }
           }
          }
          #-------------------------------------------------------------------------------
          # Revert configuration.
          # these commands are executed if user requests to remove default configuration
          #-------------------------------------------------------------------------------
          :if ($action = "revert") do={
           :if (!($keepUsers = "yes")) do={
             /user set admin password=""
             :delay 0.5
             /user expire-password admin 
           }
           /ip firewall filter remove [find comment~"defconf"]
           /ipv6 firewall filter remove [find comment~"defconf"]
           /ipv6 firewall address-list remove [find comment~"defconf"]
           /ip firewall nat remove [find comment~"defconf"]
           /interface list member remove [find comment~"defconf"]
           /interface detect-internet set detect-interface-list=none
           /interface detect-internet set lan-interface-list=none
           /interface detect-internet set wan-interface-list=none
           /interface detect-internet set internet-interface-list=none
           /interface list remove [find comment~"defconf"]
           /tool mac-server set allowed-interface-list=all
           /tool mac-server mac-winbox set allowed-interface-list=all
           /ip neighbor discovery-settings set discover-interface-list=!dynamic
             :local o [/ip dhcp-server network find comment="defconf"]
             :if ([:len $o] != 0) do={ /ip dhcp-server network remove $o }
             :local o [/ip dhcp-server find name="defconf" !disabled]
             :if ([:len $o] != 0) do={ /ip dhcp-server remove $o }
             /ip pool {
               :local o [find name="default-dhcp" ranges=192.168.88.10-192.168.88.254]
               :if ([:len $o] != 0) do={ remove $o }
             }
             :local o [/ip dhcp-client find comment="defconf"]
             :if ([:len $o] != 0) do={ /ip dhcp-client remove $o }
           /ip dns {
             set allow-remote-requests=no
             :local o [static find comment="defconf"]
             :if ([:len $o] != 0) do={ static remove $o }
           }
           /ip address {
             :local o [find comment="defconf"]
             :if ([:len $o] != 0) do={ remove $o }
           }
           :foreach iface in=[/interface ethernet find] do={
             /interface ethernet set $iface name=[get $iface default-name]
           }
           /interface bridge port remove [find comment="defconf"]
           /interface bridge remove [find comment="defconf"]
           /interface bonding remove [find comment="defconf"]
          }
          :log info Defconf_script_finished;
          :set defconfMode;