Bulk insert fails to rollback during insert..select

SET unique_checks=0,foreign_key_checks=0;

CREATE TABLE t1 (c INT) ENGINE=InnoDB;

ALTER TABLE t1 ADD CONSTRAINT cst1 UNIQUE INDEX (c);

INSERT t1 SELECT 1 FROM seq_1_to_15;  # 15 Rows affected

SELECT * FROM t1;  # 0 Rows

DELETE FROM t1;

mysqld: /test/10.11_dbg/storage/innobase/row/row0upd.cc:1969: dberr_t row_upd_sec_index_entry(upd_node_t*, que_thr_t*): Assertion `0' 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 0x152434cd0700 (LWP 875027))]

(gdb) bt

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

#1  0x000015245b45a859 in __GI_abort () at abort.c:79

#2  0x000015245b45a729 in __assert_fail_base (fmt=0x15245b5f0588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x5605426b33c6 "0", file=0x56054275e7b8 "/test/10.11_dbg/storage/innobase/row/row0upd.cc", line=1969, function=<optimized out>) at assert.c:92

#3  0x000015245b46bfd6 in __GI___assert_fail (assertion=assertion@entry=0x5605426b33c6 "0", file=file@entry=0x56054275e7b8 "/test/10.11_dbg/storage/innobase/row/row0upd.cc", line=line@entry=1969, function=function@entry=0x56054275f798 "dberr_t row_upd_sec_index_entry(upd_node_t*, que_thr_t*)") at assert.c:101

#4  0x00005605420e9203 in row_upd_sec_index_entry (node=node@entry=0x1523c0035fd0, thr=thr@entry=0x1523c0036298) at /test/10.11_dbg/storage/innobase/row/row0upd.cc:1969

#5  0x00005605420ec55a in row_upd_sec_step (thr=0x1523c0036298, node=0x1523c0035fd0) at /test/10.11_dbg/storage/innobase/row/row0upd.cc:2094

#6  row_upd (thr=0x1523c0036298, node=0x1523c0035fd0) at /test/10.11_dbg/storage/innobase/row/row0upd.cc:2818

#7  row_upd_step (thr=thr@entry=0x1523c0036298) at /test/10.11_dbg/storage/innobase/row/row0upd.cc:2933

#8  0x0000560542093dfe in row_update_for_mysql (prebuilt=0x1523c00355e0) at /test/10.11_dbg/storage/innobase/row/row0mysql.cc:1686

#9  0x0000560541f0ed1a in ha_innobase::delete_row (this=0x1523c0034da0, record=0x1523c00330a8 "\375\001") at /test/10.11_dbg/storage/innobase/handler/ha_innodb.cc:8706

#10 0x0000560541c09b19 in handler::ha_delete_row (this=0x1523c0034da0, buf=0x1523c00330a8 "\375\001") at /test/10.11_dbg/sql/handler.cc:7715

#11 0x00005605418b97f5 in TABLE::delete_row (this=0x1523c001f218) at /test/10.11_dbg/sql/sql_delete.cc:281

#12 0x00005605418b7c02 in mysql_delete (thd=thd@entry=0x1523c0000d48, table_list=0x1523c00132c0, conds=<optimized out>, order_list=order_list@entry=0x1523c0005a68, limit=18446744073709551615, options=<optimized out>, result=<optimized out>) at /test/10.11_dbg/sql/sql_delete.cc:842

#13 0x00005605419145e0 in mysql_execute_command (thd=thd@entry=0x1523c0000d48, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.11_dbg/sql/sql_limit.h:85

#14 0x000056054190003c in mysql_parse (thd=thd@entry=0x1523c0000d48, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152434ccf330) at /test/10.11_dbg/sql/sql_parse.cc:8037

#15 0x000056054190d66d in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1523c0000d48, packet=packet@entry=0x1523c000aed9 "DELETE FROM t1", packet_length=packet_length@entry=14, blocking=blocking@entry=true) at /test/10.11_dbg/sql/sql_class.h:1345

#16 0x000056054190fd97 in do_command (thd=0x1523c0000d48, blocking=blocking@entry=true) at /test/10.11_dbg/sql/sql_parse.cc:1407

#17 0x0000560541a73fb9 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x5605444a0f78, put_in_cache=put_in_cache@entry=true) at /test/10.11_dbg/sql/sql_connect.cc:1416

#18 0x0000560541a744c3 in handle_one_connection (arg=0x5605444a0f78) at /test/10.11_dbg/sql/sql_connect.cc:1318

#19 0x000015245b96b609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#20 0x000015245b557133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95