Server crashes in MYSQL_LOG::is_open upon ALTER vs FUNCTION

CREATE TABLE t (a INT);

INSERT INTO t VALUES (1),(2);

--delimiter $

CREATE FUNCTION f () RETURNS INT

BEGIN

  UPDATE t SET a = 10;

  RETURN 0;

END $

--delimiter ;

--connect (con1,localhost,root,,)

--send

  ALTER TABLE t FORCE, ALGORITHM=COPY;

--connection default

SELECT f();

# Cleanup

--connection con1

--reap

DROP TABLE t;

DROP FUNCTION f;

--disconnect con1

#3  <signal handler called>

#4  0x000055c025640498 in MYSQL_LOG::is_open (this=0x8f8f8f8f8f8f8f8f) at /data/src/bb-11.0-oalter-gcov/sql/log.h:323

#5  0x000055c026234f66 in Event_log::flush_and_set_pending_rows_event (this=0x8f8f8f8f8f8f8f8f, thd=0x7fb174000dc8, event=0x0, cache_data=0x7fb174071ad0, is_transactional=true) at /data/src/bb-11.0-oalter-gcov/sql/log.cc:6528

#6  0x000055c026234cc0 in binlog_flush_pending_rows_event (thd=0x7fb174000dc8, stmt_end=false, is_transactional=true, bin_log=0x8f8f8f8f8f8f8f8f, cache_data=0x7fb174071ad0) at /data/src/bb-11.0-oalter-gcov/sql/log.cc:6482

#7  0x000055c02623c758 in binlog_online_alter_end_trans (thd=0x7fb174000dc8, all=false, commit=true) at /data/src/bb-11.0-oalter-gcov/sql/log.cc:7708

#8  0x000055c02621ac81 in binlog_commit (thd=0x7fb174000dc8, all=false, ro_1pc=true) at /data/src/bb-11.0-oalter-gcov/sql/log.cc:2333

#9  0x000055c025f9b2e6 in commit_one_phase_2 (thd=0x7fb174000dc8, all=false, trans=0x7fb1740047c0, is_real_trans=true) at /data/src/bb-11.0-oalter-gcov/sql/handler.cc:2116

#10 0x000055c025f9aee1 in ha_commit_one_phase (thd=0x7fb174000dc8, all=false) at /data/src/bb-11.0-oalter-gcov/sql/handler.cc:2078

#11 0x000055c025f98c7b in ha_commit_trans (thd=0x7fb174000dc8, all=false) at /data/src/bb-11.0-oalter-gcov/sql/handler.cc:1872

#12 0x000055c025c0b6d2 in trans_commit_stmt (thd=0x7fb174000dc8) at /data/src/bb-11.0-oalter-gcov/sql/transaction.cc:472

#13 0x000055c02585f29c in mysql_execute_command (thd=0x7fb174000dc8, is_called_from_prepared_stmt=false) at /data/src/bb-11.0-oalter-gcov/sql/sql_parse.cc:6061

#14 0x000055c02586a489 in mysql_parse (thd=0x7fb174000dc8, rawbuf=0x7fb1740154d0 "SELECT f()", length=10, parser_state=0x7fb18b581370) at /data/src/bb-11.0-oalter-gcov/sql/sql_parse.cc:8000

#15 0x000055c025840a3d in dispatch_command (command=COM_QUERY, thd=0x7fb174000dc8, packet=0x7fb17400ba59 "", packet_length=10, blocking=true) at /data/src/bb-11.0-oalter-gcov/sql/sql_parse.cc:1894

#16 0x000055c02583db82 in do_command (thd=0x7fb174000dc8, blocking=true) at /data/src/bb-11.0-oalter-gcov/sql/sql_parse.cc:1407

#17 0x000055c025bd1395 in do_handle_one_connection (connect=0x55c02bc0c818, put_in_cache=true) at /data/src/bb-11.0-oalter-gcov/sql/sql_connect.cc:1416

#18 0x000055c025bd0dc0 in handle_one_connection (arg=0x55c02bc59788) at /data/src/bb-11.0-oalter-gcov/sql/sql_connect.cc:1318

#19 0x000055c02650baf7 in pfs_spawn_thread (arg=0x55c02bc0c388) at /data/src/bb-11.0-oalter-gcov/storage/perfschema/pfs.cc:2201

#20 0x00007fb194aa7fd4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442

#21 0x00007fb194b2866c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81