redux-scraper/backlog/tasks/task-48 - Detect-thumbnail-URL-changes-during-user-scanning.md

id, title, status, assignee, created_date, labels, dependencies

id	title	status	assignee	created_date	labels	dependencies
task-48	Detect FurAffinity thumbnail URL changes during user scanning	To Do		2025-07-08

Description

When scanning FurAffinity user galleries, favorites, or browse pages, check if the thumbnail URL changes when a submission is re-observed to detect if posts need to be force re-scanned due to content changes. Example: https://refurrer.com/posts/fa@60206635

Acceptance Criteria

• System detects when thumbnail URLs change during scanning
• A new PostFile is created rather than overwriting the URL and blob of the original PostFile
• Changed submissions are flagged for re-scanning
• Re-scanning is automatically triggered for flagged posts
• System tracks thumbnail URL changes over time
• False positives are minimized through proper comparison logic