[Merge] lp:~thomas-voss/trust-store/fix-1504022 into lp:trust-store

[Sebastien Bacher]

@Tyler, note that the current situation is not any better, the prompt are using the name of the hook included in the click, which is also not restricted...

Having the appid mentioned looks like a good idea to me though
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https://code.launchpad.net/~thomas-voss/trust-store/fix-1504022/+merge/278224
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