Server crashes in find_table_in_list upon INSERT .. SELECT after dropping a database

--source include/have_innodb.inc

CREATE TABLE t1 (a INT) ENGINE=MEMORY;

CREATE SCHEMA db;

CREATE PROCEDURE db.pr() SELECT * FROM test.t1; 

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

--let $con1_id= `SELECT CONNECTION_ID()`

--send

  DROP DATABASE db;

--connection default

SELECT * FROM t1;

--eval KILL $con1_id

--error 0,ER_BAD_DB_ERROR,ER_SP_DOES_NOT_EXIST

CALL db.pr;

CREATE TABLE test.t2 LIKE test.t1  ;

INSERT test.t2 WITH cte AS ( SELECT * FROM test.t1 ) SELECT * FROM cte;

# Partial cleanup

# (full cleanup is not always possible due to MDEV-20642)

--connection con1

--error 0,2013

--reap

--connection default

DROP DATABASE IF EXISTS db;

DROP TABLE IF EXISTS test.t1, test.t2;

#3  <signal handler called>

#4  __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:31

#5  0x000055c194dfd52d in find_table_in_list (table=0x7f9a28014128, link=&TABLE_LIST::next_global, db_name=0x7f9a28012568 "test", table_name=0x7f9a28012570 "t2") at /data/src/10.2/sql/sql_base.cc:942

#6  0x000055c194e12635 in find_table_in_global_list (table=0x7f9a280138d0, db_name=0x7f9a28012568 "test", table_name=0x7f9a28012570 "t2") at /data/src/10.2/sql/sql_base.h:360

#7  0x000055c194dfd74e in find_dup_table (thd=0x7f9a28000b00, table=0x7f9a280125b0, table_list=0x7f9a280138d0, check_flag=0) at /data/src/10.2/sql/sql_base.cc:1036

#8  0x000055c194dfda7d in unique_table (thd=0x7f9a28000b00, table=0x7f9a280125b0, table_list=0x7f9a280138d0, check_flag=0) at /data/src/10.2/sql/sql_base.cc:1139

#9  0x000055c194e53490 in select_insert::prepare (this=0x7f9a28015058, values=..., u=0x7f9a28004700) at /data/src/10.2/sql/sql_insert.cc:3638

#10 0x000055c194eb22b9 in JOIN::prepare (this=0x7f9a28015100, tables_init=0x7f9a28014128, wild_num=1, conds_init=0x0, og_num=0, order_init=0x0, skip_order_by=false, group_init=0x0, having_init=0x0, proc_param_init=0x0, select_lex_arg=0x7f9a28004e40, unit_arg=0x7f9a28004700) at /data/src/10.2/sql/sql_select.cc:1049

#11 0x000055c194ebb9ca in mysql_select (thd=0x7f9a28000b00, tables=0x7f9a28014128, wild_num=1, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=3489925888, result=0x7f9a28015058, unit=0x7f9a28004700, select_lex=0x7f9a28004e40) at /data/src/10.2/sql/sql_select.cc:3796

#12 0x000055c194eafce8 in handle_select (thd=0x7f9a28000b00, lex=0x7f9a28004638, result=0x7f9a28015058, setup_tables_done_option=1073741824) at /data/src/10.2/sql/sql_select.cc:361

#13 0x000055c194e73c79 in mysql_execute_command (thd=0x7f9a28000b00) at /data/src/10.2/sql/sql_parse.cc:4283

#14 0x000055c194e7ed64 in mysql_parse (thd=0x7f9a28000b00, rawbuf=0x7f9a28012468 "INSERT test.t2 WITH cte AS ( SELECT * FROM test.t1 ) SELECT * FROM cte", length=70, parser_state=0x7f9a7aa04200, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7759

#15 0x000055c194e6d06d in dispatch_command (command=COM_QUERY, thd=0x7f9a28000b00, packet=0x7f9a28096371 "INSERT test.t2 WITH cte AS ( SELECT * FROM test.t1 ) SELECT * FROM cte", packet_length=70, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1831

#16 0x000055c194e6b9c1 in do_command (thd=0x7f9a28000b00) at /data/src/10.2/sql/sql_parse.cc:1384

#17 0x000055c194fc0b83 in do_handle_one_connection (connect=0x55c1990be250) at /data/src/10.2/sql/sql_connect.cc:1336

#18 0x000055c194fc08ee in handle_one_connection (arg=0x55c1990be250) at /data/src/10.2/sql/sql_connect.cc:1241

#19 0x000055c1957f19fa in pfs_spawn_thread (arg=0x55c1990e1500) at /data/src/10.2/storage/perfschema/pfs.cc:1862

#20 0x00007f9a81f2c4a4 in start_thread (arg=0x7f9a7aa05700) at pthread_create.c:456

#21 0x00007f9a80474d0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97