Newly created issue is unassigned after reactivating user with their old username.

Description

Using addon Create on the transition to create subtask as a post function in one of workflows transition.
Unfortunately, some the subtasks are not assigned correctly. It will get assigned as unassigned.

Steps to reproduce:
#1. Have created the user (testemail).
#2. Added the create sub-task post function with specific assignee as testemail in one of the transition.
#3. I transition the issue, it got created sub-task with assignee as testemail user.
#4. I have changed user name with testemail_old and made inactive.
#5. I have created the another test user with same name testemail.
#6. I transition the same issue again, it got created the sub-task with assignee as un-assigneed. (Issue is reproduced)

For more information, please check the linked support issue below.

Environment

None

Status

Assignee

Nishanth Thimmareddy

Reporter

Jozef Paulišin

Labels

None

Support Entitlement

None

Affects versions

7.1.0

Priority

Major