[MC-122171] Sponges suppress updates, can cause crash

The bug

When you remove water via sponges, it no longer updates water blocks adjacent to the ones removed, and the adjacent water blocks also seem to be unaffected by random ticks that would normally cause them to start spreading. Put simply, once you remove a patch of water via sponges, that patch won't be refilled. When pushing a line of sponges along with a basic flying machine, it eventually causes a crash.

Crash report

17w47a: crash-2017-11-22_18.31.44-client.txt

Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
	at bad.f(SourceFile:108)
	at bad.P_(SourceFile:313)
	at aqb.k(SourceFile:1451)
	at bmg.m(SourceFile:1241)
	at bmg.b(SourceFile:781)
	at bmg.a(SourceFile:369)
	at net.minecraft.client.main.Main.main(SourceFile:134)