[FIX] project: fix domain for task in portal

Steps:
- Install Project
- portal view > task

Issue:
- the private task was displayed in the portal view

Cause:
- the domain was not set for the private portal project

Fix:
- displayed task whose project_id is not false
- so private project was not displayed in the portal view

task-3147011

closes odoo/odoo#117783

X-orignal-commit: https://github.com/odoo/odoo/pull/111456/commits/2c00c7d37cf66601e7a25e22d6170973ea78b158
X-original-commit: b4ff1f0cd543fec9ca653fad97a96287e50743d7
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/project/controllers/portal.py

@@ -21,7 +21,7 @@ class ProjectCustomerPortal(CustomerPortal):
             values['project_count'] = request.env['project.project'].search_count([]) \
                 if request.env['project.project'].check_access_rights('read', raise_exception=False) else 0
         if 'task_count' in counters:
-            values['task_count'] = request.env['project.task'].search_count([]) \
+            values['task_count'] = request.env['project.task'].search_count([('project_id', '!=', False)]) \
                 if request.env['project.task'].check_access_rights('read', raise_exception=False) else 0
         return values
 
@@ -461,7 +461,7 @@ class ProjectCustomerPortal(CustomerPortal):
 
     def _get_my_tasks_searchbar_filters(self, project_domain=None, task_domain=None):
         searchbar_filters = {
-            'all': {'label': _('All'), 'domain': []},
+            'all': {'label': _('All'), 'domain': [('project_id', '!=', False)]},
         }
 
         # extends filterby criteria with project the customer has access to