The GSSAPI library libgssapi_krb5.so.2 will look in /etc/gss/mech to see if any mechanisms other than Kerberos are configured. Packages such as gssntlmssp (review bug 1018588) want to drop files into that directory, and review guidelines highlight /etc/gss as an unowned directory. It should be owned by krb5-libs. Although actually we want a /etc/gss/mech.d directory into which various files can be dropped, rather than relying on manual editing (or symlinking, or whatever) of a single config file. That's a more complex issue though...
krb5-1.11.3-10.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/krb5-1.11.3-10.fc19
krb5-1.11.3-10.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
krb5-1.11.3-27.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/krb5-1.11.3-27.fc20
Package krb5-1.11.3-29.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing krb5-1.11.3-29.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-20687/krb5-1.11.3-27.fc20 then log in and leave karma (feedback).
krb5-1.11.3-29.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.