Odoo 11 comes with unified features for Project Tasks and Project
Issues. Specifically, issues were retro-fitted into tasks, and saw their
specific features added to the features of tasks.
During this refactoring, the portal controller for issues was superseded
by a unified portal controller for tasks, via
623ea43268
One case was lost in the process: portal visibility of
tasks/issues/things that are individually followed by customers, without
the customer following the project itself.
This is important for `transversal` projects, such as a "Helpdesk"
project common to all customers, where each customer only sees their own
issues.
This commit restores the feature, previously added to issues by
1cc8252a95
Note: this clearly requires a proper regression test, to be added soon.
Displaying the rating of project is moved directly
in project module, since it does not depends on website.
User may want to display rating of its support project
even without website.