Description of problem:
Recurrence of problems with rubygem-psych packages.  

Version-Release number of selected component (if applicable):
2.0.8-40.fc22

How reproducible:
Always with this version, at least.

Steps to Reproduce:
1. dnf upgrade rubygem-psych
2.
3.

Actual results:
dnf log:
Aug 24 21:20:50 CRITICAL rubygem-psych-2.0.8-40.fc22.x86_64 was supposed to be installed but is not!
Aug 24 21:20:53 CRITICAL rubygem-psych-2.0.5-30.fc21.x86_64 was supposed to be removed but is not!

dnf output:
Running transaction
  Upgrading   : rubygem-psych-2.0.8-40.fc22.x86_64                                                      1/2 
Error unpacking rpm package rubygem-psych-2.0.8-40.fc22.x86_64
Error unpacking rpm package rubygem-psych-2.0.8-40.fc22.x86_64
error: unpacking of archive failed on file /usr/share/ruby/psych: cpio: rename
rubygem-psych-2.0.8-40.fc22.x86_64 was supposed to be installed but is not!
  Verifying   : rubygem-psych-2.0.8-40.fc22.x86_64                                                      1/2 
rubygem-psych-2.0.5-30.fc21.x86_64 was supposed to be removed but is not!
  Verifying   : rubygem-psych-2.0.5-30.fc21.x86_64                                                      2/2 

Failed:
  rubygem-psych.x86_64 2.0.8-40.fc22