Title: #128: Fix group renaming issue when "id_provider = ldap" is set
Just for the record, the issues mentioned by @lslebodn were reported
recently and I really would prefer to treat them as not part of this PR (if necessary).
That is wrong preference because after renaming groups there might be two different
entries in memory cache with the same UID/GID but with different name. And that is a
problem. And must be fixed as part of https://fedorahosted.org/sssd/ticket/3282
hmm, perhaps we could also forcibly drop the contents of memory cache
like we do with the back end to nss back channel when the groups are renamed?
Did you mean with the back end to nss back channel when authentication change
Although with the renaming we should not end up with duplicate
Are you sure? Because sysdb will not contain duplicate entries but memory cache might
Unless you will be lucky and 1st entry before renaming is already expired in memory
See the full comment at https://github.com/SSSD/sssd/pull/128#issuecomment-334148621