Merge 10.3 into 10.4

The MDEV-17262 commit 26432e49d3
was skipped. In Galera 4, the implementation would seem to require
changes to the streaming replication.

In the tests archive.rnd_pos main.profiling, disable_ps_protocol
for SHOW STATUS and SHOW PROFILE commands until MDEV-18974
has been fixed.

mysql-test/suite/handler/ps.test

@@ -7,5 +7,7 @@ flush status;
 handler handler_a read first;
 # handler...read must be prepared in --ps-protocol mode
 --replace_result $PS_PROTOCOL OK
+--disable_ps_protocol
 show status like 'Com_stmt_prepare%';
+--enable_ps_protocol
 drop table t1;