Assertion `!item->null_value' failed in Type_handler::Item_send_str

CREATE TABLE t1 ( a date);

INSERT INTO t1  VALUES ('1994-10-18'), ('1905-12-25'), (NULL), ('1938-12-17'), ('1931-04-28'), ('1919-05-09'), (NULL), ('1943-09-04'), ('2015-11-04'), (NULL), (NULL);

SELECT aes_encrypt(a,a)  FROM  t1 ;

/11/sql/sql_type.cc:7448: bool Type_handler::Item_send_str(Item*, Protocol*, st_value*) const: Assertion `!item->null_value' failed.

230705 17:21:28 [ERROR] mysqld got signal 6 ;

Server version: 11.2.0-MariaDB-debug-log source revision: 7c7de020b576a42bd381a9060c3076f85da0d9d4

sql/sql_type.cc:7449(Type_handler::Item_send_str(Item*, Protocol*, st_value*) const)[0x5613515429bb]

sql/sql_type.h:5456(Type_handler_string_result::Item_send(Item*, Protocol*, st_value*) const)[0x5613512c3b72]

sql/item.h:1236(Item::send(Protocol*, st_value*))[0x561350a96bc8]

sql/protocol.cc:1332(Protocol::send_result_set_row(List<Item>*))[0x561350b56d6f]

sql/sql_class.cc:3125(select_send::send_data(List<Item>&))[0x561350cfbbca]

sql/sql_class.h:5756(select_result_sink::send_data_with_check(List<Item>&, st_select_lex_unit*, unsigned long long))[0x561351036bb9]

sql/sql_select.cc:24697(end_send(JOIN*, st_join_table*, bool))[0x561350feccac]

sql/sql_select.cc:23664(evaluate_join_record(JOIN*, st_join_table*, int))[0x561350fe4a93]

sql/sql_select.cc:23468(sub_select(JOIN*, st_join_table*, bool))[0x561350fe3982]

sql/sql_select.cc:22948(do_select(JOIN*, Procedure*))[0x561350fe0c23]

sql/sql_select.cc:4933(JOIN::exec_inner())[0x561350f5f22d]

sql/sql_select.cc:4710(JOIN::exec())[0x561350f5c5e4]

sql/sql_select.cc:5239(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x561350f60d35]

sql/sql_select.cc:627(handle_select(THD*, LEX*, select_result*, unsigned long long))[0x561350f304a9]

sql/sql_parse.cc:6030(execute_sqlcom_select(THD*, TABLE_LIST*))[0x561350e519ca]

sql/sql_parse.cc:3944(mysql_execute_command(THD*, bool))[0x561350e425de]

sql/sql_parse.cc:7769(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x561350e5c80f]

sql/sql_parse.cc:1894(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x561350e34cef]

sql/sql_parse.cc:1405(do_command(THD*, bool))[0x561350e31a39]

sql/sql_connect.cc:1416(do_handle_one_connection(CONNECT*, bool))[0x56135130cd17]

sql/sql_connect.cc:1320(handle_one_connection)[0x56135130c674]

perfschema/pfs.cc:2203(pfs_spawn_thread)[0x561351f89a46]

nptl/pthread_create.c:478(start_thread)[0x7f765105f609]

Query (0x6290001092a8): SELECT aes_encrypt(a,a)  FROM  t1