Automation do not run if default user set to other than System Administrator

Summary

Service Desk enables administrator of a project to change the default user to run an automation rule.
If the default user for project's automation is changed, the automation will not work and on the automation page it still shows as System Administrator

Environment

• JIRA version 7.0.0-OD-08
• JIRA Service Desk version 3.1.0-OD-03

Steps to Reproduce

1. Set the user that automation rules will run as (other user than System Administrator)
2. Create an automation to Be aware of urgent issues
3. Rules :
   • When Issue created
   • Issue matches priority in (Blocker,Critical)
   • Alert User (any_user)
4. Run as project default (any_user)
5. Create a blocker/critical issue through customer portal

Expected Results

User mentioned is alerted through notifications

Actual Results

1. User mentioned is not alerted through notifications
2. Run as project default (any user) instead of Run as project default (System Administrator)

Notes

(Optional - If Necessary)

Workaround

Run query

select ao."ID" ,ao."USER_KEY", p.pkey, p.pname from "AO_9B2E3B_PROJECT_USER_CONTEXT" ao, project p where ao."PROJECT_ID" = p.id;

For example :

ID |  USER_KEY   |  pkey  |             pname
----+-------------+--------+-------------------------------
 10 | test | ABC1   | ServiceDesk ABC1
 11 | test | ABC2 | ServiceDesk ABC2
 13 | sysadmin    | ABC3   | ServiceDesk ABC3
 12 | sysadmin    | ABC4  | ServiceDesk ABC4
(4 rows)

Update the USER_KEY of the project automation which is not working to sysadmin