Client turns into a ghost

[Wingly]

Sometimes after respawning the client becomes a "ghost". The client can't be seen by the host and can't pickup abilities. The client can however still se the host.

[rarosu]

The client replica on the server fell through the world and the client could not update the server on its actual position, due to a jitterfix which would refuse any positions not in line with the local vertical velocity. This check has been removed and now position state should always be in sync.