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Description of problem:
Uninstalling automount removes sss from nssswitch.conf whereas it should be only touching the automount line. I suspect it is doing backup/restore at a very coarse granularity, and possibly restoring it to a time before the ipa client was installed (instead of the time before automount was setup )

Version-Release number of selected component (if applicable):

ipa-client-3.0.0-47.el6.x86_64

How reproducible:
Not easily. I've seen it a few times on some systems. 

Steps to Reproduce:
1. ipa-client-automount --uninstall

Actual results:

sss is purged entirely from nssswitch.conf

Expected results:

sss should be removed only from the automount line

Additional info:

Confirming. On FreeIPA 4.2 

 $ ipa-client-install
 $ ipa-client-automount
 $ ipa-client-automount --uninstall

Returns nsswitch.conf to a state before ipa-client-install

This doesn't mean that all sss is removed but that the restoration of backup files doesn't work well.

The reason is that(at least on 4.2) ipa-client-automount shares backup state with ipa-client-install. It doesn't touch nsswith.conf on installation(no new backup) but on --uninstall it restores nsswith.conf.

Upstream ticket:
https://fedorahosted.org/freeipa/ticket/5415

See https://bugzilla.redhat.com/show_bug.cgi?id=1141799#c7

*** This bug has been marked as a duplicate of bug 1141799 ***