[Koha] Koha 18.05.00.000: Search in Group of Libraries not working after upgrade

[Ata ur Rehman]

Dear All

After upgrading to 18.05.00 from 17.11, searching catalog by limiting to a
group of libraries (OPAC and Staff Client) is not working.  I have come to
know that Library Groups have been re-designed as hierarchy of libraries (
*Bug 15707*
<https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15707> ) and I
tried to redefine all my groups/sub-groups but still no luck.

Note:  Searching in any single library or All Libraries is working fine
both in OPAC and Staff Client

Thanks in anticipation for any suggestion/advice, please

Regards,

Ata