Issue 6207 - Random crash in test_long_rdn CI test (#6215)

CI test indexes/test_long_rdn sometime crashes
The issue is that a data returned by dblayer_bulk_nextdata iterator is wrongly freed
The fix is to avoid freeing the data

Issue: #6207

Reviewed by: @droideck (Thanks!)

(cherry picked from commit f2e581b)

ldap/servers/slapd/back-ldbm/ldbm_entryrdn.c

@@ -1710,7 +1710,7 @@ _entryrdn_get_tombstone_elem(entryrdn_db_ctx_t *ctx,
         for (dblayer_bulk_start(&data); DBI_RC_SUCCESS == dblayer_bulk_nextdata(&data, &dataret);) {
             childelem = (rdn_elem *)dataret.data;
             if (RDN_IS_REDIRECT(childelem)) {
-                rc = _entryrdn_resolve_redirect(ctx, &childelem, 1);
+                rc = _entryrdn_resolve_redirect(ctx, &childelem, 0);
                 if (rc) {
                     /* Should not have any retry on lmdb and
                      * DBI_RC_NOTFOUND means that redirect db is corrupted