Title: #3314: [Backport][ipa-4-6] stageuser-find: fix search with non-posix user
This PR was opened automatically because PR #3289 was pushed to master and backport to
ipa-4-6 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3314/head:pr3314
git checkout pr3314