Before this commit,
When you use the 'group by' feature in the portal view of a project, selecting
any value will group the items by stages.
However, when you choose to 'sort by' any option other than 'Title' or 'Newest',
and then navigate back to the project table using the breadcrumb, it may result
in a traceback. The reason why this error occurs is that the query string
remains in the URL even when you switch back to the 'Project' view using the
breadcrumb.
In this commit, keep_query is keeping query in URL so removing it solve
the issue. By default, the 'Stage' is used as the groupby for each project.
task-3318851
Part-of: odoo/odoo#122485
Yash Vaishnav
b75ef2e965