[SSSD] [sssd PR#5663][comment] [WIP] cache_req: replace FQNs by shortnames

[pbrezina]

  URL: https://github.com/SSSD/sssd/pull/5663
Title: #5663: [WIP] cache_req: replace FQNs by shortnames

pbrezina commented:
"""
>  > If think what needs to be done is to parse the name anyway to
> always get non-qualified name and then check if the domain from parsed group name equals
> to domain from the input parameter for safety.
>  
>  This isn't possible for all plugins. The filter plugins should avoid parsing the
> name, but I don't know how to do it cleanly. Two 
>  
Why should it avoid parsing the name?

"""

See the full comment at https://github.com/SSSD/sssd/pull/5663#issuecomment-865823323