It is possible to connect to AmneziaWG server without properly configured extended parameters

[WTFThatPerson]

I have my own Ubuntu 22 hosted AmneziaWG server. Kernel ver. 6.8.0-1016-oracle

For some unknown reason, standard Wireguard clent or AmneziaWG client with extended parameters fields unset connects to properly configured AmneziaWG server. I mean, that server is successfully configured with extended parameters set, is up and accessible by properly configured AmneziaWG clients, but it’s accessible using Wireguard/unset AmneziaWG client too. I tried different clients for Wireguard and for AmneziaWG both: for Windows, for Android and for Ubuntu 16, and they show no differences. If opposite case, everything works as expected, i.e. AmneziaWG client with extended field set won’t connect to Wireguard server or AmneziaWG server in Wireguard mode.