[MERGE][trivial] Fix missing gpg import and update call sites.

[John Arbash Meinel]

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Vincent Ladeuil wrote:
> Found while trying to run 'bzr selftest -s bt.per_repository.test_repository' in brisbane core.
> 
>       Vincent
> 
> 

BB:approve

Though as you note, this is trivial, and you can merge it without approval.

John
=:->

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