[Bug 1199751] [NEW] [check-mir] does not use -proposed

[Launchpad Bug Tracker]

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I presume that check-mir is expected to be run on a system with
appropriate apt sources enabled. But having the proposed pocket of the
development release enabled is not appropriate even on a development
system. This means that when a package is blocked from proposed
migration, and another package needs to be uploaded to fix it, that
second package cannot have "check-mir" run on its source with accurate
results, as check-mir is blind to the proposed pocket.

For example: right now, apache2-dev is in saucy-proposed, but there is
no such thing in saucy, since it is introduced by apache2 2.4 whose
migration is in progress. When I run check-mir on php5 from Debian, I
see "apache2-dev does not exist (pure virtual?)" when it does exist in
saucy-proposed.

The only way I can think of to fix this is to switch to querying
Launchpad directly. Is there any other way?

** Affects: ubuntu-dev-tools (Ubuntu)
Importance: Undecided
Status: New