Assertion `fields[i].same(instant.fields[i])' failed in dict_index_t::instant_add_field #2

--source include/have_innodb.inc

SET @row_format.save= @@innodb_default_row_format;

CREATE TABLE t1 (a char(8)) ENGINE=InnoDB DEFAULT CHARSET utf8;

SET GLOBAL innodb_default_row_format= REDUNDANT;

ALTER TABLE t1 ADD b INT;

# Cleanup

DROP TABLE t1;

SET GLOBAL innodb_default_row_format= @row_format.save;

mysqld: /data/src/10.4/storage/innobase/handler/handler0alter.cc:466: void dict_index_t::instant_add_field(const dict_index_t&): Assertion `fields[i].same(instant.fields[i])' failed.

200727  1:03:56 [ERROR] mysqld got signal 6 ;

#7  0x00007fcdde30af12 in __GI___assert_fail (assertion=0x55fc5f086c98 "fields[i].same(instant.fields[i])", file=0x55fc5f086348 "/data/src/10.4/storage/innobase/handler/handler0alter.cc", line=466, function=0x55fc5f08f300 <dict_index_t::instant_add_field(dict_index_t const&)::__PRETTY_FUNCTION__> "void dict_index_t::instant_add_field(const dict_index_t&)") at assert.c:101

#8  0x000055fc5e76ca90 in dict_index_t::instant_add_field (this=0x7fcd8c1583a0, instant=...) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:466

#9  0x000055fc5e76e9ec in dict_table_t::instant_column (this=0x7fcd8c19ff10, table=..., col_map=0x7fcd8c16b340) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:636

#10 0x000055fc5e771129 in ha_innobase_inplace_ctx::instant_column (this=0x7fcd8c014800) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:1086

#11 0x000055fc5e74f28c in innobase_instant_try (ha_alter_info=0x7fcdd36afd50, ctx=0x7fcd8c014800, altered_table=0x7fcdd36afdf0, table=0x7fcd8c158be0, trx=0x7fcdd814d268) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:5708

#12 0x000055fc5e774b93 in commit_try_norebuild (ha_alter_info=0x7fcdd36afd50, ctx=0x7fcd8c014800, altered_table=0x7fcdd36afdf0, old_table=0x7fcd8c158be0, trx=0x7fcdd814d268, table_name=0x7fcd8c1a17c5 "t1") at /data/src/10.4/storage/innobase/handler/handler0alter.cc:10254

#13 0x000055fc5e762399 in ha_innobase::commit_inplace_alter_table (this=0x7fcd8c19f718, altered_table=0x7fcdd36afdf0, ha_alter_info=0x7fcdd36afd50, commit=true) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:11006

#14 0x000055fc5e4cd429 in handler::ha_commit_inplace_alter_table (this=0x7fcd8c19f718, altered_table=0x7fcdd36afdf0, ha_alter_info=0x7fcdd36afd50, commit=true) at /data/src/10.4/sql/handler.cc:4616

#15 0x000055fc5e25511f in mysql_inplace_alter_table (thd=0x7fcd8c000af0, table_list=0x7fcd8c013278, table=0x7fcd8c158be0, altered_table=0x7fcdd36afdf0, ha_alter_info=0x7fcdd36afd50, inplace_supported=HA_ALTER_INPLACE_INSTANT, target_mdl_request=0x7fcdd36b0bc0, alter_ctx=0x7fcdd36b1700) at /data/src/10.4/sql/sql_table.cc:7797

#16 0x000055fc5e25bdce in mysql_alter_table (thd=0x7fcd8c000af0, new_db=0x7fcd8c0052b0, new_name=0x7fcd8c0056b8, create_info=0x7fcdd36b22f0, table_list=0x7fcd8c013278, alter_info=0x7fcdd36b2230, order_num=0, order=0x0, ignore=false) at /data/src/10.4/sql/sql_table.cc:10156

#17 0x000055fc5e2f40f1 in Sql_cmd_alter_table::execute (this=0x7fcd8c013a60, thd=0x7fcd8c000af0) at /data/src/10.4/sql/sql_alter.cc:520

#18 0x000055fc5e1717a0 in mysql_execute_command (thd=0x7fcd8c000af0) at /data/src/10.4/sql/sql_parse.cc:6098

#19 0x000055fc5e176c91 in mysql_parse (thd=0x7fcd8c000af0, rawbuf=0x7fcd8c013198 "ALTER TABLE t1 ADD b INT", length=24, parser_state=0x7fcdd36b3570, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:7896

#20 0x000055fc5e1631c6 in dispatch_command (command=COM_QUERY, thd=0x7fcd8c000af0, packet=0x7fcd8c0083a1 "ALTER TABLE t1 ADD b INT", packet_length=24, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1835

#21 0x000055fc5e161968 in do_command (thd=0x7fcd8c000af0) at /data/src/10.4/sql/sql_parse.cc:1353

#22 0x000055fc5e2eab0c in do_handle_one_connection (connect=0x55fc61035760) at /data/src/10.4/sql/sql_connect.cc:1412

#23 0x000055fc5e2ea85b in handle_one_connection (arg=0x55fc61035760) at /data/src/10.4/sql/sql_connect.cc:1316

#24 0x000055fc5ecea879 in pfs_spawn_thread (arg=0x55fc610515f0) at /data/src/10.4/storage/perfschema/pfs.cc:1869

#25 0x00007fcde02934a4 in start_thread (arg=0x7fcdd36b4700) at pthread_create.c:456

#26 0x00007fcdde3c7d0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97