sysschema.pr_ps_setup_show_enabled fails sporadically

CURRENT_TEST: sysschema.pr_ps_setup_show_enabled

--- 10.11/mysql-test/suite/sysschema/r/pr_ps_setup_show_enabled.result  2025-05-26 17:37:27.462974377 +0400

+++ 10.11/mysql-test/suite/sysschema/r/pr_ps_setup_show_enabled.reject  2026-01-10 01:32:02.032189943 +0400

@@ -207,6 +207,15 @@

 innodb/page_cleaner_thread     BACKGROUND

 mysys/statement_timer  BACKGROUND

 root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

 sql/main       BACKGROUND

 sql/manager    BACKGROUND

 CALL sys.ps_setup_show_enabled(TRUE, TRUE);

@@ -238,6 +247,15 @@

 innodb/page_cleaner_thread     BACKGROUND

 mysys/statement_timer  BACKGROUND

 root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

+root@localhost FOREGROUND

 sql/main       BACKGROUND

 sql/manager    BACKGROUND

 enabled_instruments    timed

diff --git a/sql/sql_connect.cc b/sql/sql_connect.cc

index c279f2663c8..c227fee943e 100644

--- a/sql/sql_connect.cc

+++ b/sql/sql_connect.cc

@@ -1483,6 +1483,7 @@ void do_handle_one_connection(CONNECT *connect, bool put_in_cache)

     if (thd->userstat_running)

       update_global_user_stats(thd, create_user, time(NULL));

+    sleep(1);

     unlink_thd(thd);

     if (IF_WSREP(thd->wsrep_applier, false) || !put_in_cache ||

         !(connect= thread_cache.park()))