MDEV-15236: galera_ist_progress fails when trying to read transfer status

Fixed by new  recording test recording

mysql-test/suite/galera/disabled.def

@@ -17,7 +17,6 @@ galera_as_slave_replication_bundle : MDEV-15785 OPTION_GTID_BEGIN is set in Gtid
 galera_autoinc_sst_mariabackup : Known issue, may require porting MDEV-17458 from later versions
 galera_binlog_stmt_autoinc : MDEV-19959 Galera test failure on galera_binlog_stmt_autoinc	
 galera_gcache_recover_manytrx : MDEV-18834 Galera test failure
-galera_ist_progress : MDEV-15236 fails when trying to read transfer status
 galera_load_data : MDEV-19968 galera.galera_load_data
 galera_parallel_simple : MDEV-20318 galera.galera_parallel_simple fails	
 galera_shutdown_nonprim : MDEV-21493 galera.galera_shutdown_nonprim

mysql-test/suite/galera/r/galera_ist_progress.result

@@ -1,6 +1,10 @@
+connection node_2;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate = 1';
+connection node_1;
+connection node_2;
 SET SESSION wsrep_on = OFF;
 SET SESSION wsrep_on = ON;
+connection node_1;
 CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1);
 INSERT INTO t1 VALUES (2);
@@ -12,8 +16,13 @@ INSERT INTO t1 VALUES (7);
 INSERT INTO t1 VALUES (8);
 INSERT INTO t1 VALUES (9);
 INSERT INTO t1 VALUES (10);
+connection node_2;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate = 0';
+connection node_1;
+connection node_2;
+connection node_1;
 include/assert_grep.inc [Receiving IST: 11 writesets, seqnos]
 include/assert_grep.inc [Receiving IST\.\.\.  0\.0% \( 0/11 events\) complete]
 include/assert_grep.inc [Receiving IST\.\.\.100\.0% \(11/11 events\) complete]
+connection node_1;
 DROP TABLE t1;