galera.MDEV-26575 and galera_sr.galera_sr_shutdown_slave failures

mysql-test/suite/galera/r/MDEV-26575.result

 connection node_2;
 connection node_1;
+connection node_2;
+call mtr.add_suppression("WSREP: Failed to scan the last segment to the end. Last events may be missing. Last recovered event:.*");
+connection node_1;
 connection node_1;
 connection node_2;
 connection node_2;

mysql-test/suite/galera/t/MDEV-26575.test

@@ -5,6 +5,10 @@
 
 --source include/galera_cluster.inc
 
+--connection node_2
+call mtr.add_suppression("WSREP: Failed to scan the last segment to the end. Last events may be missing. Last recovered event:.*");
+--connection node_1
+
 # Save original auto_increment_offset values.
 --let $node_1=node_1
 --let $node_2=node_2

mysql-test/suite/galera_sr/r/galera_sr_shutdown_slave.result

@@ -2,6 +2,8 @@ connection node_2;
 connection node_1;
 connection node_1;
 connection node_2;
+connection node_2;
+call mtr.add_suppression("WSREP: Failed to scan the last segment to the end. Last events may be missing. Last recovered event:.*");
 connection node_1;
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE = InnoDB;
 connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1;

mysql-test/suite/galera_sr/t/galera_sr_shutdown_slave.test

@@ -8,6 +8,8 @@
 --let $node_1=node_1
 --let $node_2=node_2
 --source ../galera/include/auto_increment_offset_save.inc
+--connection node_2
+call mtr.add_suppression("WSREP: Failed to scan the last segment to the end. Last events may be missing. Last recovered event:.*");
 
 --connection node_1
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE = InnoDB;