Spring.GetPlayerInfo: the 'desynced' return value (12th) is always false

See the echo of playername +desync status below:


Start by tracing the Spring.GetPlayerInfo entry point and the implementation of its 12th return value, then reproduce the player-name and desync-status output shown in the issue image. Done means the desynced value reports the player's actual desync status instead of always returning false.

Written by the indexing model from the issue text.