ContainerFix fixes a common issue with many mods that doesn't close
the Gui of a Container, even if that container is destroyed or removed somehow.
This mod is supposed to be used in conjunction with other mods.
This bug was discovered by Darkosto.
For modders:
If you want to fix this issue for your mod, override Container#canInteractWith. In there, you would do a check if the TileEntity of the container still exists in the world, and if the player is close enough to the Block. This would mimic vanilla behavior.
Example:
@Override
public boolean canInteractWith(EntityPlayer player)
{
return te.world.getTileEntity(te.getPos()) == te && player.getDistanceSq(te.pos.add(0.5, 0.5, 0.5)) <= 64;
}