Use tmpmem for group cache, doesn't need cleanup

servers/slapd/backend.c

@@ -1279,7 +1279,7 @@ backend_group(
 	}
 
 	if ( op->o_tag != LDAP_REQ_BIND && !op->o_do_not_cache ) {
-		g = ch_malloc(sizeof(GroupAssertion) + gr_ndn->bv_len);
+		g = sl_malloc(sizeof(GroupAssertion) + gr_ndn->bv_len, op->o_tmpmemctx);
 		g->ga_be = op->o_bd;
 		g->ga_oc = group_oc;
 		g->ga_at = group_at;

servers/slapd/operation.c

@@ -69,6 +69,7 @@ slap_op_free( Operation *op )
 		free( op->o_sync_state.bv_val );
 	}
 
+#if 0	/* needless, since it was allocated in tmpmem */
 	{
 		GroupAssertion *g, *n;
 		for (g = op->o_groups; g; g=n) {
@@ -77,6 +78,7 @@ slap_op_free( Operation *op )
 		}
 		op->o_groups = NULL;
 	}
+#endif
 
 #if defined( LDAP_SLAPI )
 	if ( op->o_pb != NULL ) {