xcodebuild fails when building to iOS device

Install 5.13.0 RC iOS binaries, launch Creator.

Open any of the examples and build. Build output says 'xcode build fails'.

When launching the .xcodeproject file (created by Creator) in xcode and build, there is errors about singing:

Code Signing Error: Provisioning profile "iOS Team Provisioning Profile: *" is Xcode managed, but signing settings require a manually managed profile.Code Signing Error: Code signing is required for product type 'Application' in SDK 'iOS 12.2'

Simulator build works and deploys correctly.

Does not reproduce on released QtCreator 4.9.1, fails with QtC 4.10.0 beta1.