This workaround is meant to help JSM projects where it is necessary to pull someone mentioned in a text format from the description field into a user picker field, like the Reporter field.
At the moment, the lookup of a user picker field is by ID and not text. Therefore, the A4J will not be able to add the user account and the field will be "Anonymous".
The automation rule will get the values that are after the "is" until the "dot".
For more information about this procedure, please refer to the documentation below: