Assertion `instant.fields[i].col->same_format(*fields[i] .col)' failed in dict_index_t::instant_add_field

--source include/have_innodb.inc

CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;

INSERT IGNORE INTO t1 VALUES (1,1);

ALTER TABLE t1 ADD f DATE AFTER a;

ALTER TABLE t1 DROP b, DROP f;

# Cleanup

DROP TABLE t1;

mysqld: /data/src/10.4/storage/innobase/handler/handler0alter.cc:461: void dict_index_t::instant_add_field(const dict_index_t&): Assertion `instant.fields[i].col->same_format(*fields[i] .col)' failed.

190121  1:20:54 [ERROR] mysqld got signal 6 ;

#7  0x00007fdcd296eee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6

#8  0x00005651a9ea7013 in dict_index_t::instant_add_field (this=0x7fdc7815aa28, instant=...) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:460

#9  0x00005651a9ea87ee in dict_table_t::instant_column (this=0x7fdc781560e8, table=..., col_map=0x7fdc7806f728) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:625

#10 0x00005651a9eaa89b in ha_innobase_inplace_ctx::instant_column (this=0x7fdc78016320) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:1080

#11 0x00005651a9e90937 in innobase_instant_try (ha_alter_info=0x7fdccc4e4bc0, ctx=0x7fdc78016320, altered_table=0x7fdc7815cca0, table=0x7fdc7818d060, trx=0x7fdccc77f258) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:5495

#12 0x00005651a9eadb73 in commit_try_norebuild (ha_alter_info=0x7fdccc4e4bc0, ctx=0x7fdc78016320, altered_table=0x7fdc7815cca0, old_table=0x7fdc7818d060, trx=0x7fdccc77f258, table_name=0x7fdc78070e5d "t1") at /data/src/10.4/storage/innobase/handler/handler0alter.cc:10160

#13 0x00005651a9e9f8e6 in ha_innobase::commit_inplace_alter_table (this=0x7fdc7818dc98, altered_table=0x7fdc7815cca0, ha_alter_info=0x7fdccc4e4bc0, commit=true) at /data/src/10.4/storage/innobase/handler/handler0alter.cc:10793

#14 0x00005651a9b2ff82 in handler::ha_commit_inplace_alter_table (this=0x7fdc7818dc98, altered_table=0x7fdc7815cca0, ha_alter_info=0x7fdccc4e4bc0, commit=true) at /data/src/10.4/sql/handler.cc:4492

#15 0x00005651a98ef570 in mysql_inplace_alter_table (thd=0x7fdc78000b00, table_list=0x7fdc780150a0, table=0x7fdc7818d060, altered_table=0x7fdc7815cca0, ha_alter_info=0x7fdccc4e4bc0, inplace_supported=HA_ALTER_INPLACE_INSTANT, target_mdl_request=0x7fdccc4e4cf0, alter_ctx=0x7fdccc4e58e0) at /data/src/10.4/sql/sql_table.cc:7590

#16 0x00005651a98f53d1 in mysql_alter_table (thd=0x7fdc78000b00, new_db=0x7fdc780051e0, new_name=0x7fdc780055b0, create_info=0x7fdccc4e64d0, table_list=0x7fdc780150a0, alter_info=0x7fdccc4e6410, order_num=0, order=0x0, ignore=false) at /data/src/10.4/sql/sql_table.cc:9690

#17 0x00005651a997fa4f in Sql_cmd_alter_table::execute (this=0x7fdc78015730, thd=0x7fdc78000b00) at /data/src/10.4/sql/sql_alter.cc:497

#18 0x00005651a981cceb in mysql_execute_command (thd=0x7fdc78000b00) at /data/src/10.4/sql/sql_parse.cc:6314

#19 0x00005651a9821c16 in mysql_parse (thd=0x7fdc78000b00, rawbuf=0x7fdc78014fb8 "ALTER TABLE t1 DROP b, DROP f", length=29, parser_state=0x7fdccc4e7600, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:8116

#20 0x00005651a980edb3 in dispatch_command (command=COM_QUERY, thd=0x7fdc78000b00, packet=0x7fdc7800b441 "ALTER TABLE t1 DROP b, DROP f", packet_length=29, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1852

#21 0x00005651a980d7d7 in do_command (thd=0x7fdc78000b00) at /data/src/10.4/sql/sql_parse.cc:1397

#22 0x00005651a9979a92 in do_handle_one_connection (connect=0x5651ad1bdcf0) at /data/src/10.4/sql/sql_connect.cc:1402

#23 0x00005651a9979816 in handle_one_connection (arg=0x5651ad1bdcf0) at /data/src/10.4/sql/sql_connect.cc:1308

#24 0x00005651a9e38dec in pfs_spawn_thread (arg=0x5651ad1b8c70) at /data/src/10.4/storage/perfschema/pfs.cc:1862

#25 0x00007fdcd4645494 in start_thread (arg=0x7fdccc4e8700) at pthread_create.c:333

#26 0x00007fdcd2a2b93f in clone () from /lib/x86_64-linux-gnu/libc.so.6