[SSSD] [sssd PR#5580][opened] ipa subdomains: do not fail completely if one step fails

[sumit-bose]

   URL: https://github.com/SSSD/sssd/pull/5580
Author: sumit-bose
 Title: #5580: ipa subdomains: do not fail completely if one step fails
Action: opened

PR body:
"""
Currently while updating server side data stored on an IPA server during a
subdomains request the whole request will fail if a single step fails. As a
result the remaining server side data which would have been looked up after
the failed attempt are missing.

With this patch a failure in a single lookup is not considered fatal and
SSSD will try to read the remaining data after an error occurred.

Resolves: https://github.com/SSSD/sssd/issues/5571
"""

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/5580/head:pr5580
git checkout pr5580