Protocol assertion fails or server hangs upon query using temporary table

--source include/have_sequence.inc

SET max_heap_table_size = 16*1024*1024;

CREATE TABLE t (a VARCHAR(3000));

INSERT INTO t SELECT 'foo' FROM seq_1_to_800;

SELECT PERCENTILE_DISC(1) WITHIN GROUP (ORDER BY a) OVER () FROM t;

DROP TABLE t;

mariadbd: /data/bld/testing/bb-blob-main-monty-gcov/sql/protocol.cc:639: void Protocol::end_statement(): Assertion `0' failed.

260714 19:44:09 [ERROR] /share8t/bld/testing/bb-blob-main-monty-gcov/sql/mariadbd got signal 6 ;

#8  0x00007fc6e2444395 in __assert_fail_base (fmt=0x7fc6e25b9a90 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x5634de18aab5 "0", file=file@entry=0x5634de18a670 "/data/bld/testing/bb-blob-main-monty-gcov/sql/protocol.cc", line=line@entry=639, function=function@entry=0x5634de18aa50 "void Protocol::end_statement()") at ./assert/assert.c:94

#9  0x00007fc6e2452ec2 in __GI___assert_fail (assertion=0x5634de18aab5 "0", file=0x5634de18a670 "/data/bld/testing/bb-blob-main-monty-gcov/sql/protocol.cc", line=639, function=0x5634de18aa50 "void Protocol::end_statement()") at ./assert/assert.c:103

#10 0x00005634dbf33647 in Protocol::end_statement (this=0x7fc6c40014b0) at /data/bld/testing/bb-blob-main-monty-gcov/sql/protocol.cc:639

#11 0x00005634dc221853 in dispatch_command (command=COM_QUERY, thd=0x7fc6c4000dd0, packet=0x7fc6c400c4e1 "", packet_length=66, blocking=true) at /data/bld/testing/bb-blob-main-monty-gcov/sql/sql_parse.cc:2453

#12 0x00005634dc21a9e3 in do_command (thd=0x7fc6c4000dd0, blocking=true) at /data/bld/testing/bb-blob-main-monty-gcov/sql/sql_parse.cc:1437

#13 0x00005634dc6517b7 in do_handle_one_connection (connect=0x56350014e320, put_in_cache=true) at /data/bld/testing/bb-blob-main-monty-gcov/sql/sql_connect.cc:1503

#14 0x00005634dc6512b5 in handle_one_connection (arg=0x563500130020) at /data/bld/testing/bb-blob-main-monty-gcov/sql/sql_connect.cc:1415

#15 0x00005634dd1c4367 in pfs_spawn_thread (arg=0x563500072e00) at /data/bld/testing/bb-blob-main-monty-gcov/storage/perfschema/pfs.cc:2198

#16 0x00007fc6e24a71f5 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442

#17 0x00007fc6e25278ec in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81