exercise.svelte was auto-adding a QUESTION_TEMPLATE to the store whenever
questions were empty, which raced with hydrateExercisePageData.
applyMySubmission fired with the blank template in place, set
isFinished=true, and the guard prevented re-application once real
questions loaded.
Two fixes: guard the auto-add effect with isOrgStudent (students never
need to add questions), and gate applyMySubmission on isExerciseLoaded
so it always waits for hydrateExercisePageData to populate real questions
first.
Also fix off-by-1 in applyMySubmission (questions.length → questions.length + 1)
so currentQuestion is undefined at end-of-exercise, satisfying the
isFinished derived. Clear questionnaire.questions in onDestroy to prevent
stale questions flashing on the next exercise.
Fix lesson delete not updating sidebar/content list by filtering the
removed lesson from sections on success.
Rotimi Best
8c14bfad45