Upon upgrading to f23, the rhel6 version of the krb5 spec file will no longer build.  That is to say,

[rharwood@thriss krb5.rhel]$ cat /etc/fedora-release 
Fedora release 23 (Twenty Three)
[rharwood@thriss krb5.rhel]$ rhpkg prep
error getting product information for rhel-6.8, assuming it's unreleased
error: line 731: Trigger fired by the same package is already defined in spec file: %post workstation

Could not execute prep: Command 'rpmbuild --define '_sourcedir /home/rharwood/krb5.rhel' --define '_specdir /home/rharwood/krb5.rhel' --define '_builddir /home/rharwood/krb5.rhel' --define '_srcrpmdir /home/rharwood/krb5.rhel' --define '_rpmdir /home/rharwood/krb5.rhel' --define 'dist .el6' --define 'rhel 6' --define 'el6 1' --nodeps -bp /home/rharwood/krb5.rhel/krb5.spec' returned non-zero exit status 1
[rharwood@thriss krb5.rhel]$ 

Next time this package gets touched, this will need to be fixed in order for me to use it.  I've been working on fc22, but that won't be sustainable going forward.