Title: #5863: [Backport][ipa-4-8] plugins: Don't treat keys of API as bytes
This PR was opened automatically because PR #5857 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/5863/head:pr5863
git checkout pr5863