fix: withdrawn by author - #38324
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Three distinct defects combined to break anonymous (unauthenticated) access to video blocks on public courses with the unenrolled-access waffle enabled: 1. CourseNavigationBlocksView.completions_dict queried BlockCompletion with request.user, which raised TypeError for AnonymousUser and returned a 500 from the navigation API. Short-circuit with an empty mapping for anonymous users. 2. _has_access_course.can_load did not bypass check_course_open_for_learner for anonymous users on public courses, so public courses with future start dates returned StartDateError and render_xblock converted it to a 404. Grant load access when the course is public and the waffle is enabled. 3. _has_access_to_block.can_load had the same gap at the block level, causing blocks with inherited future start dates to 404 even after the course-level check passed. Mirror the public-access bypass at the block level, keyed off the CourseOverview. Gating in all three sites reuses check_public_access, so the existing COURSE_ENABLE_UNENROLLED_ACCESS_FLAG + COURSE_VISIBILITY_PUBLIC contract continues to govern who sees what. Authenticated users, masquerading staff, and non-public courses are unaffected. Closes #38019
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Closed.