Incorrect exercise: [courseId=grammar-intro_eng][lessonNumber=3][exerciseId=2811]

[yanqui-uxo]

Description

If possible, please provide a brief description of what is wrong with this exercise. Strange answer

Diagnostics information (do not remove)

• Exercise identifier: [courseId=grammar-intro_eng][lessonNumber=3][exerciseId=2811]
• Exercise payload: {"sentences":[{"text":"The listener is happy.","lojbanic":false}],"title":"Translate this sentence","type":"typing"}
• Attempted solution: {"text":"lo se tavla ku gleki"}
• Attempted solution was classified as correct: no
• Validation payload: {"canonicalAnswer":"mi te dunda lo gerku ku","correct":false}

[emorchy]

I could not find that exercise. Was the diagnostics information edited?

[yanqui-uxo]

I did not, at least not intentionally, edit the diagnostics information. It's possible that the issue has already been dealt with.

[jqueiroz]

I know what happened there. Between @yanqui-uxo loading the page with the exercise and submitting answer, a deployment happend with changes precisely for that lesson (#77). This caused the id of exercises to change, and resulted in the nonsensical canonical answer.

I will fix this by displaying an error if exercise ids change between the page getting loaded and an answer being submitted.