When selecting 'Task Template' under Event Management, fields showed in Template field are different depends on user role. - Support and Troubleshooting

When selecting 'Task Template' under Event Management, fields showed in Template field are different depends on user role. Issue  When selecting 'Task Template' under Event Management, fields showed in Template field are different depends on user role.

Steps to reproduce:

Impersonate a user who has admin role. Go to Event Management > Task Template, and click New. Make sure the table is set to incident, and click '-- choose field --' in Template field. All incident fields are shown. Impersonate a user who doesn't have an admin role but has evt_mgmt_admin role. Go to Event Management > Task Template, and click New. This time, only six fields of incident (category, impact, priority, short description, subcategory and urgency) are shown in Template field. Release All

Cause The limitation of the incident's displayed fields for the choice-list (drop-down menu) derives from the ACL (security) limitation to the incidents table, for a user with role ITIL_ROLE, which is one of the roles assigned to a user with evt_mgmt_admin role.

Resolution In order to view the full list of incident's fields, an ITIL_admin role is required. The solution is to assign such a role to the user that needs it, or to ask the administrator (with system_admin) role to perform the task instead.