in "export"-"/ip neighbor discovery-settings" not equal "ip neighbor discovery-settings print"

Hello.

RouterOS: v6.44
Model: RouterBOARD 3011UiAS
WAN - Interface List

Values “discover-interface-list” are not equal:

If enter command “export” in CLI:
/ip neighbor discovery-settings
set discover-interface-list=WAN

If enter command in CLI:
[cli@Mikrotik] > ip neighbor discovery-settings print
discover-interface-list: !WAN

In WinBox: Discovery Interface List = !WAN