Changes

Summary

1. EntityPlayerSP.isServerWorld is not to be trusted. (details)

Commit ea17b8390f78e1edeb70045bf1f93fc4eadf6dea by AlgorithmX2 EntityPlayerSP.isServerWorld is not to be trusted.
	src/main/java/mod/chiselsandbits/client/UndoTracker.java (diff)