Results page broken after updating counter feedback

[HRemonen]

When a counter feedback has been given and the teacher goes to edit the counter feedback the feedback target loses its student count completely which results in the following behaviour:

How to repro

• Go to a feedback target which has counter feedback
• Check the results page that the results are shown
• Go to edit the counter feedback and save the new new feedback
• Go to the results page
• Reload the page and everything works again

How to fix

• Probably something to do with the cache so check if the queries are invalidated after counter feedback
• Perhaps it will be more stable after the feedback count and student counts are fetched from the summary object rather than the feedback target object. See Remove the denormalized feedbackCount from FBT #1227 for further information.

[tfhuhtal]

[tfhuhtal]

Problem is isolated to backend!