[Bug 1279513] [NEW] upgrade pre-release fail

[dean123]

Public bug reported:

upgrading kubuntu 13.10 to 14.04 alpha 2 fails with the message "could
not determine the upgrade"

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1279513

Title:
  upgrade pre-release fail

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  upgrading kubuntu 13.10 to 14.04 alpha 2 fails with the message "could
  not determine the upgrade"

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