When the gamerule '/gamerule doFireTick' is set to false, the fire does not spread. This works as intended.

Problem:
The fire created by lightening during a storm does not get extinguished by the rain. After every thunderstorm, fire is everywhere and stays there unless it is put out by hand.
On the other hand, when the gamerule is set to true, the fire created by lightening is immediatly extinguished by the rain, and every other fire or fire created by lava spreads.

Possible Solution:
When the gamerule is set to false, lightening shouldn't be able to create fire.

Side note:
For a map creator who needs the gamerule to be set to false (otherwise wooden buildings would burn down) every single thunder storm is a disaster, as it creates fire everywhere which can only be put out by hand.

Additional info:
This bug was already reported but resolved with the resolution that it works as intended, which, in my opinion, can't be the case.
https://mojang.atlassian.net/browse/MC-188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
This bug can be recreated in any gamemode and in SP and MP.

I am currently working on an adventure map, but after some time, my map is lit up like a christmas tree and looks awfull with fire everywhere. In trees, on top of tall grass and on woolen and wooden houses.