[FIX] website_project_issue: fetch the portal projects domain with sudo

The goal of this controller is to display issues that are in projects
with a "portal" privacy setting. However, this setting is used by a
record rule to limit access to the project to followers only; this
means that you should add all the customers who submit issues to your
support project. This makes no sense.

To circumvent this problem, the domain of projects with this visibility
setting is fetched as sudo.

addons/website_project_issue/controllers/main.py

@@ -42,7 +42,9 @@ class WebsiteAccount(website_account):
                 str(proj.id): {'label': proj.name, 'domain': [('project_id', '=', proj.id)]}
             })
 
-        domain = [('project_id.privacy_visibility','=','portal')]
+        # portal users can't see the privacy_visibility, fetch the domain for them in sudo
+        portal_projects = request.env['project.project'].sudo().search([('privacy_visibility', '=', 'portal')])
+        domain = [('project_id', 'in', portal_projects.ids)]
         domain += project_filters.get(project, project_filters['all'])['domain']
         order = sortings.get(sortby, sortings['date'])['order']