Whats the value of 'Unassigned', or the Assignee field in general?

[Marcel_R__Ackermann]

Many condition/validators (such as the Value Field condition from JIRA Suite Utility) allow for the comparision of values of fields. Whats the value of the Assignee field? I assume, that if it is assigned, it is the username ofthe assignee (as a string). What's the value of Assignee field if the issue is unassigned?

Many thanks!

[Jobin Kuruvilla [Adaptavist] · Accepted solution]

If Unassigned, the assignee field value is empty or null.

[Kevin Beal]

It's equal to null. A validation error is thrown if you expect an empty string.

[Destia Salma]

Hi Jobin, 

Can i automatic change a "empty Assignee Field" to "Project Lead" or Default Assignee? can you tell me scripting to chage it ?