First of all : I made a mistake with my previous isue [CORE-4] (it should be in JIRA not in the CORE I suppose). It has nothing to do with this one but it's only fair to mention it.(Sorry)
I want to assign an issue to more then 1 person (we use extreme programming => we work in pairs).
If an issue is created I need to create a second one and link it to the first one (there identical).
Seems a bit overkill doesn't it.
So my proposition is to make the assignee a collection, that way you can assign as many people to an issue as you want.
Also need the ability to delete a person from the assignee list + if it's the last one on the list allow it and set unknown.