LDAP Filter has no effect

[Brasil083]

          @freescout-helpdesk 

Hi, the problem returns
if I add this line DC=example,DC=com(&(objectclass=top)(memberof=CN=example_group,OU=Example,DC=example,DC=com)) the filter matches the user to the group for import but grants access to all users.
if I set something on the OU filter, with a group in the example you will not recognize anything for import.
Apparently it is mandatory to have users in the specified organizational unit

The goal is to restrict the import and allow access to a specific user in the security group
even if the base dn is the entire domain.
I think this was the purpose of the open and answered question, sorry if I made a mistake in commenting and didn't open a new question

Originally posted by @Brasil083 in #1299 (comment)