Using the user id or screen name, on Source, to assign the task to an User and changing to Diagram View, the application crashes

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.4.3.41 CE GA41, Master
• Component/s: Workflow
• Labels:
  • 7.4-known-issue-until-remove-flag
  • 7.4.13-u41
  • Kaleo-Migration-Bugs
  • frontend
  • interns-BR
  • kaleo=migration-should-have
• Fix Priority: 3
• Epic Link: Migration Debts
• Git Pull Request: https://github.com/liferay-workflow/liferay-portal/pull/795

Description:
When the user uses the user id or screen name, on Source, to assign the task node to an User and click on Diagram View, the application crashes

Steps to Reproduce:

1. Go to Open menu > Workflow > Process Builder > New Workflow
2. Add a Task node to the diagram
3. In the Assignments section, click on New button
4. Select the User assignment and choose the Test Test user
5. Click on Source View button
6. Change the tag

   <email-address>[email protected]</email-address>
   

   for

   <user-id>20217</user-id>
   

   or

   <screen-name>test</screen-name>
   

7. Click on Diagram View button

Expected Result:
The diagram should be displayed and, in the assignments section, the fields Screen Name, Email Address and User ID should be filled with the user's information

Actual Result:
The application crashes

Verified on master : 5f807d48b6c54db4c561b331c3d746b719100f0c