Ticket 47507 - automember rebuild task not working as expected

Bug Description:  If the basedn specified in the task is not beneath the automember scope,
                  the entry is skipped.

                  Example:
                           automember scope:  ou=people,dc=example,dc=com
                           task basedn:       dc=example,dc=com  --> using this dn will cause
                                                                     all the candidate entries
                                                                     to be skipped.

Fix Description:  Regardless what the task basedn is, the candidate entry dn needs to be
                  checked against the scope of the autommeber config.

https://fedorahosted.org/389/ticket/47507

Revewied by: nhosoi(Thanks!!)

ldap/servers/plugins/automember/automember.c

@@ -2192,7 +2192,7 @@ void automember_rebuild_task_thread(void *arg){
             while (list != g_automember_config) {
                 config = (struct configEntry *)list;
                 /* Does the entry meet scope and filter requirements? */
-                if (slapi_dn_issuffix(slapi_sdn_get_dn(td->base_dn), config->scope) &&
+                if (slapi_dn_issuffix(slapi_entry_get_dn(entries[i]), config->scope) &&
                     (slapi_filter_test_simple(entries[i], config->filter) == 0))
                 {
                     automember_update_membership(config, entries[i], NULL);