Quest: Thrusting Hodir's Spear - Wild Wyrm

Description:

The quest works fine but the Wild Wyrm is the problem.
If the player dismounts or the Wild Wyrm kills him, messages keep appearing on the screen.
Even if the player abandons the quest, the messages will appear every time the player is around the zone.

Image 1: I have dismounted
https://imgur.com/XjkEuUn
Image 2: I have reconnected and died
https://imgur.com/Z9YYCG2

Current behaviour:
Part of the event for this quest keeps going even if the player dismounts, dies or reconnects.

Expected behaviour:
The messages should stop if the player dismounts?

Steps to reproduce the problem:

1. .q add 13003
2. .go c id 30275
3. Mount the Wild Wyrm and let the char die or dismount

Branch(es): 3.3.5
TC rev. hash/commit: https://github.com/TrinityCore/TrinityCore/commit/2daddd69981181d4b3e56806bab99b64908124a2 (I have used tc test realm)

Search the quest and creature handling for quest 13003 and creature 30275, then reproduce the issue with the listed commands on the 3.3.5 branch. Trace the Wild Wyrm event through dismount, death, reconnect, and quest abandonment; done means its messages stop in each case.