Wrong branch-group for kaccounts-integration (or for the modules that depend on it)

Trying to reproduce bug 479938, I set the branch-group to kf5-qt5 in the config.

Now when I try to see what is going to build:

kde-builder -p kaccounts-integration --debug

I see the message that is is not in branch group:

...
Removing kde/kdenetwork/kaccounts-integration due to branch-group
...

While I see in dependency-data-kf5-qt5 that it is a dependency of:

kde/kdenetwork/kaccounts-providers
kde/kdenetwork/kio-gdrive
kde/pim/akonadi
kde/workspace/plasma-welcome

And when building one of these modules, for example:

kde-builder -p plasma-welcome --debug

I see that kaccounts-integration is forced_to_kde_project

...
Building kaccounts-integration from forced_to_kde_project (43/58)
        Fetching remote changes to kaccounts-integration
        Merging kaccounts-integration changes from branch master
        Source update complete for kaccounts-integration: no files affected
          Rebuilding because the build directory doesn't exist
        Preparing build system for kaccounts-integration.
        Running cmake targeting Ninja...
        Compiling... succeeded (after 0 seconds)
        Installing kaccounts-integration succeeded (after 0 seconds)
...
Building plasma-welcome from kf5-workspace-modules (58/58)
        Fetching remote changes to plasma-welcome
        Merging plasma-welcome changes from branch Plasma/5.27
        Source update complete for plasma-welcome: no files affected
          Rebuilding because the build directory doesn't exist
        Preparing build system for plasma-welcome.
        Running cmake targeting Ninja...
        Compiling... succeeded (after 0 seconds)
        Installing plasma-welcome succeeded (after 0 seconds)
...

So it is impossible to build just kaccounts-integration.

Specifying it with "+" to force to kde-project (see documentation) does not help, because it is already recognized project, it is just disabled by branch group.

So some of this is obviously wrong. Either the kaccounts-integration's branch-group for kf5-qt5 and stable-kf5-qt5 should be enabled, or all the modules' mentioned above (which have kaccounts-integration as a dependency) branch-group for kf5-qt5 and stable-kf5-qt5 should be disabled.

@aacid