Description of problem:

On the current rawhide attempt to do 'dnf update libreport' results in

Error: 
 Problem: cannot install both libreport-2.9.5-1.fc29.x86_64 and libreport-2.9.4-1.fc29.x86_64
  - package python2-libreport-2.9.4-1.fc29.x86_64 requires libreport = 2.9.4-1.fc29, but none of the providers can be installed
  - cannot install the best update candidate for package libreport-2.9.4-1.fc29.x86_64
  - problem with installed package python2-libreport-2.9.4-1.fc29.x86_64

If 'python2-libreport' is no longer desired than it looks like that corresponding "obsoletes" was forgotten.

Version-Release number of selected component (if applicable):
libreport-2.9.5-1.fc29

Additional info:
Running with an additional '--allowerasing' allows this update to proceed.