[Bug 412297] Re: release upgrade invalidates apt pinning preferences

[Walter Garcia-Fontes]

Sorry that the issue got unattended at the time of report. Now all extra
repositories are disabled on upgrade to new distribution. Please feel
free to reopen by marking the status as "new" if you see this in current
versions of update-manager.

** Changed in: update-manager-core (Ubuntu)
       Status: Confirmed => Invalid

** Package changed: update-manager-core (Ubuntu) => update-manager
(Ubuntu)

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https://bugs.launchpad.net/bugs/412297

Title:
  release upgrade invalidates apt pinning preferences

Status in “update-manager” package in Ubuntu:
  Invalid

Bug description:
  Ubuntu 9.04

  expected:
  doing a release upgrade will alter any existences of intrepid to jaunty in /etc/apt/preferences, like it does in sources.list
  actual:
  apt preferences are left unchanged, so a lower-pinned release like intrepid-backports/intrepid-proposed is left blocking a nonexistent source. As a result, packages from this repository will now be installed, the untested packages from this repository will now be installed by default, without warning.

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