IPv6 external servers show in LAN

When adding an external server by IPv6 address (ex: 2604:2dc0:101:200:0:0:0:352c), the server will show in LAN and the motd and ping do not show in the server list.

Steps to reproduce:

1. Add a server by direct IPv6 address
2. Restart Minecraft/go back to the title screen
3. Go to the Servers tab and then to the Friends tab

Observed results:
The server appears in LAN and the motd does not show in the server list despite being able to join it.

Expected results:
The server should not appear in LAN and the motd should show in the server list.

This does not seem to occur when using a shortened IPv6 address (such as 2604:2dc0:101:200::352c).