[TASK] Redirect non-safe URLs the the safe notation #618
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As explained in #482 RealUrl is case sensitive for non-cached URLs, but it accepts different case spelling for cached results.
Scenario:
This is problematic because it leads to duplicate URLs for the same content.
Solution: If
convertToSafeString()
returns a different result, mark the original path as expired and redirect to the safe URL. With this change, the request is redirected in step 1 of the above scenario (even if there's no result in the cache).Closes #482
see also #617