Board Thread:Bug Reports/@comment-27200931-20170213123546/@comment-25101089-20170218232443

Alright, I have copied and pasted the code from the base fire class and modified it to check for banner protection before trying to spread to a block. This comes at the expense of stability and compatibility. Khamul's Fire might break in updates, in different Forge versions, and if there are other mods installed which mess with fire. There is no other way to alter the fire's behaviour, because the methods in the base fire class are private, and thus cannot be overriden and altered for Khamul's Fire.

Personally I would say this is worse than having the fire able to spread one block into banner protection, but there you go.