In Team Arena's Harvester mode, players corrupt your memory from beyond
the grave. Gib the players to stop the corruption!
CG_PlayerTokens is called for player entities, including corpses.
The entity number is used for the index in cg.skulltrails which only has
MAX_CLIENTS elements. This results in incorrect memory being overwritten
for corpse entities (as the entity number is >= MAX_CLIENTS).
So limit skull trails to valid entities (entity number < MAX_CLIENTS).