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changes.mady.by.user Daniel Lamb

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  1. Etags are calculated differently, and can no longer be relied upon for use with the If-Match header for PUT requests.
  2. To perform a conditional PUT that works for both Fedora 5 and 6, use X-State-Token with X-If-State-Token instead.

Modifications to the same Resource in Separate Transactions

  1. If the same resource is modified in two different concurrent transactions, the first modification will succeed, but the second modification will fail with a 409 conflict with the following message: "Cannot update info:fedora/<id> because it is being updated by another transaction." This holds true for containers and binaries.
    1. In Fedora 5, both modifications would succeed, and whichever transaction committed last would be the final state of the object