Seen in production

In at least one case we have noticed that some Goals were found to be invalid in the database:

This unfortunately seemed to cause tracking to fail for at least some of the requests: Error in Matomo (tracker): General_ExceptionInvalidGoalPattern

Steps:

• we should check that Goals attributes values are checked and how this could have happened and how can it be prevented.
• ideally the tracker should not fail when a goal is invalid, not because these checks are removed, but because the goal is fully checked and validated at every creation/update