[MC-9664] Blaze / Ghast fireballs can make fire with MobGriefing off

With /gamerule doMobGriefing false, blazes can still light things on fire.

Steps to make the bug work: (with MobGriefing false)
1. Spawn blazes in an area where blocks can be burned/destroyed
2. Make the blazes fire (go into Survival, punch it, etc)

Linked issues

is duplicated by

MC-11913 Ghast balls will make fire, even if /gamerule doFireTick and mobGriefing is on false

MC-27817 Blazes and ghasts griefing the map with gamerule mobGriefing false

relates to

MC-2789 Unbreakable blocks in adventure mode: Hay Block, TNT, Silverfish, Piston, Cactus, Bed, Fire, Sponge

Comments

Tails 2013-03-18T22:14:53Z

Confirmed in 13w11a and added Ghasts fireballs.

Ali 2013-03-19T16:09:11Z

I hope this gets removed, if doFireTick is set to false, the fire won't disappear and fighting a ton of ghasts and blazes will fill everything with fire which you can't destroy on adventuremode (don't make fire destroyable to fix this ._.)

Tails 2013-03-19T16:11:24Z

Indestructable fire in Adventure mode already documented in MC-2789.

John Smith 2013-08-01T14:21:06Z

This also applies to Ghasts - their explosions won't damage the map, but will still create fire. Aside from creating a lot of fire, blazes and ghats can destroy some blocks right away, like redstone wire, which is direct mob grief!