Spider: SIGSEGV in check_vcol_forward_refs on INSERT DELAYED

INSTALL PLUGIN spider SONAME 'ha_spider.so';

CREATE TABLE t (a INT UNSIGNED KEY,b INT UNSIGNED,c INT UNSIGNED,UNIQUE (b,c) USING HASH) ENGINE=SPIDER;

SHOW CREATE TABLE t;

INSERT DELAYED INTO t VALUES (0,0,0);

Core was generated by `/test/MD290122-mariadb-10.4.23-linux-x86_64-dbg/bin/mysqld --no-defaults --core'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  0x000056320e9bfb17 in check_vcol_forward_refs (field=field@entry=

    0x1525bc015b38, vcol=0x1525bc015c10, 

    check_constraint=check_constraint@entry=false)

    at /test/10.4_dbg/sql/table.cc:3506

[Current thread is 1 (Thread 0x152610182700 (LWP 2286557))]

(gdb) bt

#0  0x000056320e9bfb17 in check_vcol_forward_refs (field=field@entry=0x1525bc015b38, vcol=0x1525bc015c10, check_constraint=check_constraint@entry=false) at /test/10.4_dbg/sql/table.cc:3506

#1  0x000056320e9c47d9 in parse_vcol_defs (thd=thd@entry=0x1525bc000d90, mem_root=0x1525bc006768, table=table@entry=0x1525bc014a80, error_reported=error_reported@entry=0x15261017f540, mode=mode@entry=VCOL_INIT_DEPENDENCY_FAILURE_IS_WARNING) at /test/10.4_dbg/sql/table.cc:1304

#2  0x000056320e87df8e in Delayed_insert::get_local_table (this=this@entry=0x1525bc0a1970, client_thd=client_thd@entry=0x1525bc000d90) at /test/10.4_dbg/sql/sql_insert.cc:2673

#3  0x000056320e886d28 in delayed_get_table (table_list=0x1525bc013328, grl_protection_request=0x15261017f690, thd=0x1525bc000d90) at /test/10.4_dbg/sql/sql_insert.cc:2502

#4  open_and_lock_for_insert_delayed (thd=thd@entry=0x1525bc000d90, table_list=table_list@entry=0x1525bc013328) at /test/10.4_dbg/sql/sql_insert.cc:573

#5  0x000056320e88740f in mysql_insert (thd=thd@entry=0x1525bc000d90, table_list=0x1525bc013328, fields=@0x1525bc005ba0: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x56320fe95ca0 <end_of_list>, last = 0x1525bc005ba0, elements = 0}, <No data fields>}, values_list=@0x1525bc005be8: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x1525bc014090, last = 0x1525bc014090, elements = 1}, <No data fields>}, update_fields=@0x1525bc005bd0: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x56320fe95ca0 <end_of_list>, last = 0x1525bc005bd0, elements = 0}, <No data fields>}, update_values=@0x1525bc005bb8: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x56320fe95ca0 <end_of_list>, last = 0x1525bc005bb8, elements = 0}, <No data fields>}, duplic=DUP_ERROR, ignore=false) at /test/10.4_dbg/sql/sql_insert.cc:759

#6  0x000056320e8c3cc1 in mysql_execute_command (thd=thd@entry=0x1525bc000d90) at /test/10.4_dbg/sql/sql_parse.cc:4598

#7  0x000056320e8cba83 in mysql_parse (thd=thd@entry=0x1525bc000d90, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152610181490, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_parse.cc:7995

#8  0x000056320e8ce4df in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1525bc000d90, packet=packet@entry=0x1525bc01a361 "INSERT DELAYED INTO t VALUES (0,0,0)", packet_length=packet_length@entry=36, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_class.h:1201

#9  0x000056320e8d1dd2 in do_command (thd=0x1525bc000d90) at /test/10.4_dbg/sql/sql_parse.cc:1373

#10 0x000056320ea10cb3 in do_handle_one_connection (connect=connect@entry=0x56321273c100) at /test/10.4_dbg/sql/sql_connect.cc:1420

#11 0x000056320ea10dd2 in handle_one_connection (arg=0x56321273c100) at /test/10.4_dbg/sql/sql_connect.cc:1316

#12 0x000015262676f609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#13 0x000015262635d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95