Multiplayer PvP glitch (relog glitch)

The well known "relog glitch" is a glitch, which allows a person who logged into a server AFTER another person to get a HUGE knockback advantage/reach advantage (not so sure about the reach but i experienced it). It happens on EVERY server and is often abused in so calles 1v1 battles. It would mean ALOT to the PvP community if this bug would be fixed.