https://bugzilla.redhat.com/show_bug.cgi?id=1475483
--- Comment #4 from Sandro Mani manisandro@gmail.com --- The qbs subpackage is only f27+ with qt-creator-4.3.x, see [1]. This actually makes it tricky now that I think of it though, since Obsoleting qbs will work fine for current rawhide users, but users updating from f26 to f27 will indeed hit the scenario you describe. So I think I actually have to obsolete both qt-creator and qbs?
[1] https://koji.fedoraproject.org/koji/packageinfo?packageID=8039