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+++ This bug was initially created as a clone of Bug #1746557 +++

Description of problem:
ipa-client-install calls "authselect select sssd --force" at uninstall time before restoring user-nsswitch.conf
user-nsswitch.conf still contains the sudoers line so nsswitch.conf is not identical post-uninstall to previous state.


Version-Release number of selected component (if applicable):
freeipa-4.8.1-1.fc30

How reproducible:
Always


Steps to Reproduce:
0. grep sudoers /etc/nsswitch.conf => Nothing
1. ipa-client-install (...) -U
2. ipa-client-install --uninstall -U
3. grep sudoers /etc/nsswitch.conf

Actual results:
sudoers: files sss

Expected results:
Nothing

Additional info:
This is visible by setting a breakpoint:
* in ipaplatform/redhat/authconfig.py::RedHatAuthSelect::unconfigure()
* before ipautil.run(cmd)
Run ipa-client-install --uninstall
and when Pdb stops execution, examine the content of user-nsswitch.conf.

Upstream ticket:
https://pagure.io/freeipa/issue/8054

PR: https://github.com/freeipa/freeipa/pull/3593
nfs test results: http://freeipa-org-pr-ci.s3-website.eu-central-1.amazonaws.com/jobs/56dfa73c-ca5d-11e9-94f2-fa163e643683/
nfs_nsswitch_restore test results: http://freeipa-org-pr-ci.s3-website.eu-central-1.amazonaws.com/jobs/692a3092-ca5d-11e9-a12e-fa163edb55d0/
All related automated tests are green.

Fixed upstream
master:
https://pagure.io/freeipa/c/03a228aaf6418a93b2a59bef46a94c9bf7528077
https://pagure.io/freeipa/c/73f049c75f0b1ed269cb8ebcb5c2158d2bc8b614

Fixed upstream
ipa-4-8:
https://pagure.io/freeipa/c/ffe9871e1f73a80ac092a5350bd80b78df52a9fd
https://pagure.io/freeipa/c/7343504f976a726198b0c203702c87638d2b8636

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2020:1640