perfschema.show_aggregate,innodb,pot fails upon --repeat with wrong result

$ perl ./mtr perfschema.show_aggregate,innodb,pot --repeat=2

<...>

worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019

perfschema.show_aggregate 'innodb,pot'   [ pass ]    155

perfschema.show_aggregate 'innodb,pot'   [ 2 fail ]

        Test ended at 2021-07-22 00:06:21

CURRENT_TEST: perfschema.show_aggregate

--- /mnt-hd8t/bld/10.5-debug-nightly/mysql-test/suite/perfschema/r/show_aggregate.result	2021-03-06 05:41:07.000000000 +0200

+++ /mnt-hd8t/bld/10.5-debug-nightly/mysql-test/suite/perfschema/r/show_aggregate.reject	2021-07-22 00:06:21.143429636 +0300

@@ -203,12 +203,6 @@

 USE performance_schema;

 SELECT * FROM status_by_thread WHERE thread_id IN (@con1_id, @con2_id, @con3_id) AND variable_name IN ('handler_delete', 'handler_rollback') ORDER BY thread_id;

 THREAD_ID	VARIABLE_NAME	VARIABLE_VALUE

-thread_id	Handler_delete	1

-thread_id	Handler_rollback	1

-thread_id	Handler_delete	2

-thread_id	Handler_rollback	2

-thread_id	Handler_delete	3

-thread_id	Handler_rollback	3

 #

 # Verify expected counts for 'handler_delete' per thread

 # 

mysqltest: Result length mismatch