I have had multiple users unable to log in to my BDS server due to incorrect capitalization of their  xbox gamertag. AFAIK gamertags are supposed to be case-insensitive so this is causing surprising behavior.

I'm unsure if this is new behavior or not, but with the upgrade to 1.20.31 my allowlist was reset (unsure if this is on my end or the BDS), 

Steps to reproduce:

1. Create a BDS Server on Linux
2. Add a player to the allowlist
3. Verify that the user can join
4. Change the case and reload the allowlist.

Observed behavior: User can not join world.

Desired behavior: User can join and the allowlist will update to the correct values, similar to the xuid field.

Edit: Sources for case-insensitive assumption:

• https://twitter.com/XboxSupport/status/499698177583222785
• https://answers.microsoft.com/en-us/xbox/forum/all/are-gamertags-case-sensitive/843f5370-42f8-473b-8d19-e8547d693e82