clear player data command may fail to disconnect some players

[John-Paul-R]

Okay I got enough clients running to test. It worked (mostly) I ran it direct from the server console, it kicked everyone except for one player, not sure why they were excluded, but it did wipe out nicknames.

essentialcommands deleteAllPlayerData
[00:18:29] [Server thread/INFO]: Are you sure you want to disconnect all players and permanently delete ALL Essential Commands player data? This action is irreversible. Run the command again to confirm.
essentialcommands deleteAllPlayerData
[00:18:44] [Server thread/INFO]: splGamer2 lost connection: Server closed
[00:18:44] [Server thread/INFO]: splGamer2 left the game
[00:18:44] [Server thread/WARN]: handleDisconnection() called twice
[00:18:44] [Server thread/INFO]: splGamer4 lost connection: Server closed
[00:18:44] [Server thread/INFO]: splGamer4 left the game
[00:18:44] [Server thread/INFO]: splGamer7 lost connection: Server closed
[00:18:44] [Server thread/INFO]: ~sage 7 left the game
[00:18:44] [Server thread/INFO]: splGamer8 lost connection: Server closed
[00:18:44] [Server thread/INFO]: splGamer8 left the game
[00:18:45] [Server thread/INFO]: splMinecrafter lost connection: Server closed
[00:18:45] [Server thread/INFO]: splMinecrafter left the game

nothing in the log except possibly the [00:18:44] [Server thread/WARN]: handleDisconnection() called twice hints at why one player survived the "purge" but it worked otherwise. maybe a race condition?

Originally posted by @Swizzler121 in #242