Xcode installs multiple containing apps onto device when debugging/running iOS8 App Today Extension

I have an iOS project that has several targets. Each target also has an embedded Today Extension.

All my build schemes have been created automatically, and recently refreshed.

However, when I try to Debug/Run my Today Extension on the actual device, Xcode deploys multiple apps/extensions to the device, not just the one in the selected Scheme.

For example, if I select this scheme:

enter image description here

...then not only is BusCheckerTodayExtension, and its containing app installed to the device and run, but also BusCheckerUKTodayExtension, BusCheckerWESTTodayExtension and both of their containing apps too.

Is this a bug to be reported in XCode or is this some obscure build/dependency setting that I've missed?

Solution

This was almost certainly a bug in Xcode and seems to be fixed in newer releases.