Comment # 1 on bug 1086212 from Dr. Werner Fink

> grep /etc/bash.bashrc aaa_base/*.spec
%config /etc/bash.bashrc

In other words: if the checksum *differs*, then there should be a
/etc/bash.bashrc.rpmsave

Could be checked by

  sudo  rpm -qV aaa_base

With indicators

       S file Size differs
       M Mode differs (includes permissions and file type)
       5 digest (formerly MD5 sum) differs
       D Device major/minor number mismatch
       L readLink(2) path mismatch
       U User ownership differs
       G Group ownership differs
       T mTime differs
       P caPabilities differ

where T could be not enough for getting a /etc/bash.bashrc.rpmsave