[Merge] lp:~thomas-voss/location-service/make-bag-of-providers-unsubscribe-from-event-channels-on-destruction into lp:location-service

[Manuel de la Peña]

Review: Needs Information

Is there a bug related to this change? Can we link against it?
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https://code.launchpad.net/~thomas-voss/location-service/make-bag-of-providers-unsubscribe-from-event-channels-on-destruction/+merge/239894
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