Core/Script The passive spell Mastery: Ignite doesn´t work.

Description:

The passive spell Mastery: Ignite(ID:12846) given to Mage Fire at lv.78 has an issue

Mastery: Ignite (passive): Your target burns for an additional (x)% over 9 sec. of the total direct damage caused by your Fireball, Fire Blast, Scorch, Pyroblast, and Flamestrike. If this effect is reapplied, any reamaining damage will be added to the new ignite. Every 2 sec, your ignites may spread to another nearby enemy.

Current behaviour:

The spell doesn´t work, it doesn´t apply the effects that appears in the spell description, it doesn´t do anything.

Expected behaviour:

when you reach lv.78 and learn Mastery: Ignite every time you deal direct damage with Fireball, Fire Blast, Scorch, Pyroblast, and Flamestrike your target will burns for (x)% of the total damage done for 9 sec., if this effect is reapplied any reamaining damage will br added to the new ignite. Every 2 sec your ignites may spread to another nearby enemy.

Steps to reproduce the problem:

1. Create a Mage character
2. Reach lv.78 an choose the Fire Spec
3. Use the spell´s Fireball, Fire Blast, Scorch, Pyroblast, and Flamestrike in an anemy
4. Check if the target ignite

Branch(es):

Master

TC rev. hash/commit:

7c66e7bbc7a401e7a2d8f2bdcead6531678262ea

TDB version: 7.2.0+updates

Operating system: Windows 10

Description in wowhead http://www.wowhead.com/spell=12846/mastery-ignite

Reproduce the issue on the Master branch at the reported revision using a level 78 Fire Mage and spell ID 12846. Inspect the spell handling for Fireball, Fire Blast, Scorch, Pyroblast, and Flamestrike; done means the target receives the described nine-second Ignite, refreshes add remaining damage, and spreading can occur.