Title: #5106: [Backport][ipa-4-8] Add krbPrincipalName pres index correctly
This PR was opened automatically because PR #5101 was pushed to master and backport to
ipa-4-8 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5106/head:pr5106
git checkout pr5106