[freeipa PR#1748][opened] Fix certificate retrieval in ipa-replica-prepare for DL0

[rcritten]

   URL: https://github.com/freeipa/freeipa/pull/1748
Author: rcritten
 Title: #1748: Fix certificate retrieval in ipa-replica-prepare for DL0
Action: opened

PR body:
"""
The NSSDatabase attrs for the NSS database were NULL because the database hadn't been
created yet.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1748/head:pr1748
git checkout pr1748