Assertion `inited == NONE' failed in handler::ha_reset from mark_used_tables_as_free_for_reuse on UPDATE of Spider table

INSTALL PLUGIN Spider SONAME 'ha_spider.so';

CREATE USER Spider@localhost IDENTIFIED BY 'PWD1';

CREATE SERVER srv FOREIGN DATA WRAPPER MYSQL OPTIONS (SOCKET '../socket.sock',DATABASE 'test',user 'Spider',PASSWORD 'PWD1');

CREATE TABLE t (c INT);

CREATE TABLE ts (c INT KEY,c2 INT) ENGINE=Spider COMMENT='WRAPPER "mysql",srv "srv",TABLE "t"' PARTITION BY RANGE (c) (PARTITION p VALUES LESS THAN (1),PARTITION p2 VALUES LESS THAN (300),PARTITION p3 VALUES LESS THAN (400));

CREATE TRIGGER t_bi BEFORE INSERT ON ts FOR EACH ROW SET @a=1;

UPDATE ts SET c2=1;

mysqld: /test/10.11_dbg/sql/handler.cc:7139: int handler::ha_reset(): Assertion `inited == NONE' failed.

Core was generated by `/test/MD190922-mariadb-10.11.0-linux-x86_64-dbg/bin/mysqld --no-defaults --core'.

Program terminated with signal SIGABRT, Aborted.

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

[Current thread is 1 (Thread 0x15095bb31700 (LWP 3448917))]

(gdb) bt

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#1  0x000015098cab7859 in __GI_abort () at abort.c:79

#2  0x000015098cab7729 in __assert_fail_base (fmt=0x15098cc4d588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x56466ae9c1f8 "inited == NONE", file=0x56466afd6a38 "/test/10.11_dbg/sql/handler.cc", line=7139, function=<optimized out>) at assert.c:92

#3  0x000015098cac8fd6 in __GI___assert_fail (assertion=assertion@entry=0x56466ae9c1f8 "inited == NONE", file=file@entry=0x56466afd6a38 "/test/10.11_dbg/sql/handler.cc", line=line@entry=7139, function=function@entry=0x56466afd6788 "int handler::ha_reset()") at assert.c:101

#4  0x000056466a54a0a5 in handler::ha_reset (this=0x15092409c2f0) at /test/10.11_dbg/sql/handler.cc:7139

#5  0x000056466a7ec858 in ha_partition::reset (this=0x1509240e3aa0) at /test/10.11_dbg/include/my_bitmap.h:106

#6  0x000056466a549f44 in handler::ha_reset (this=0x1509240e3aa0) at /test/10.11_dbg/sql/handler.cc:7161

#7  0x000056466a1c126c in mark_used_tables_as_free_for_reuse (table=0x15092406d3c8, thd=0x150924000d48) at /test/10.11_dbg/sql/sql_base.cc:695

#8  close_thread_tables (thd=thd@entry=0x150924000d48) at /test/10.11_dbg/sql/sql_base.cc:911

#9  0x000056466a1c1392 in close_thread_tables_for_query (thd=thd@entry=0x150924000d48) at /test/10.11_dbg/sql/sql_base.cc:790

#10 0x000056466a25a3f8 in mysql_execute_command (thd=thd@entry=0x150924000d48, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.11_dbg/sql/sql_parse.cc:6063

#11 0x000056466a24203c in mysql_parse (thd=thd@entry=0x150924000d48, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x15095bb30330) at /test/10.11_dbg/sql/sql_parse.cc:8037

#12 0x000056466a24f66d in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x150924000d48, packet=packet@entry=0x15092400aed9 "UPDATE ts SET c2=1", packet_length=packet_length@entry=18, blocking=blocking@entry=true) at /test/10.11_dbg/sql/sql_class.h:1345

#13 0x000056466a251d97 in do_command (thd=0x150924000d48, blocking=blocking@entry=true) at /test/10.11_dbg/sql/sql_parse.cc:1407

#14 0x000056466a3b5fb9 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x56466c82f628, put_in_cache=put_in_cache@entry=true) at /test/10.11_dbg/sql/sql_connect.cc:1416

#15 0x000056466a3b64c3 in handle_one_connection (arg=0x56466c82f628) at /test/10.11_dbg/sql/sql_connect.cc:1318

#16 0x000015098cfc8609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#17 0x000015098cbb4133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95