Changing "Epic link" field not firing an event.

[Sugandha]

Basically I was hoping to get an "Issue update" event for an story type when the Epic link field of the story is changed to link to another epic.

But it seems that's not the case.

Has somebody faced a similar situation and come up with an alternate solution.

My requirement is when an story is linked to an "new" epic then to inherit some specific fields from the new epic onto the story. I was planning to write a script listener for the same. 

I am using JIRA server 7.2.9