Assertion `share->reopen == 1' failed in maria_extra upon ALTER on Aria table with triggers and locks

CREATE TABLE t1 (a INT) ENGINE=Aria;

CREATE TRIGGER tr BEFORE INSERT ON t1 FOR EACH ROW INSERT INTO t1 SELECT * FROM t1; 

LOCK TABLE t1 WRITE;

ALTER TABLE t1 FORCE, LOCK=EXCLUSIVE;

# Cleanup

DROP TABLE t1;

mysqld: /data/src/10.0/storage/maria/ma_extra.c:289: maria_extra: Assertion `share->reopen == 1' failed.

181031  1:09:36 [ERROR] mysqld got signal 6 ;

#7  0x00007fb24db46ee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6

#8  0x0000000000a2f5f3 in maria_extra (info=0x7fb246129070, function=HA_EXTRA_FORCE_REOPEN, extra_arg=0x0) at /data/src/10.0/storage/maria/ma_extra.c:289

#9  0x00000000009ef883 in ha_maria::extra (this=0x7fb24607e888, operation=HA_EXTRA_FORCE_REOPEN) at /data/src/10.0/storage/maria/ha_maria.cc:2609

#10 0x00000000005eadb6 in wait_while_table_is_used (thd=0x7fb247aa2070, table=0x7fb24609fc70, function=HA_EXTRA_FORCE_REOPEN) at /data/src/10.0/sql/sql_base.cc:1844

#11 0x000000000070674b in mysql_alter_table (thd=0x7fb247aa2070, new_db=0x7fb2460fa760 "test", new_name=0x0, create_info=0x7fb24fc154e0, table_list=0x7fb2460fa180, alter_info=0x7fb24fc15450, order_num=0, order=0x0, ignore=false) at /data/src/10.0/sql/sql_table.cc:9016

#12 0x000000000076f695 in Sql_cmd_alter_table::execute (this=0x7fb2460fa778, thd=0x7fb247aa2070) at /data/src/10.0/sql/sql_alter.cc:312

#13 0x0000000000654436 in mysql_execute_command (thd=0x7fb247aa2070) at /data/src/10.0/sql/sql_parse.cc:5118

#14 0x0000000000657a8c in mysql_parse (thd=0x7fb247aa2070, rawbuf=0x7fb2460fa088 "ALTER TABLE t1 FORCE, LOCK=EXCLUSIVE", length=36, parser_state=0x7fb24fc16640) at /data/src/10.0/sql/sql_parse.cc:6637

#15 0x000000000064a3ac in dispatch_command (command=COM_QUERY, thd=0x7fb247aa2070, packet=0x7fb248fe5071 "ALTER TABLE t1 FORCE, LOCK=EXCLUSIVE", packet_length=36) at /data/src/10.0/sql/sql_parse.cc:1300

#16 0x00000000006496ac in do_command (thd=0x7fb247aa2070) at /data/src/10.0/sql/sql_parse.cc:1003

#17 0x000000000076ade8 in do_handle_one_connection (thd_arg=0x7fb247aa2070) at /data/src/10.0/sql/sql_connect.cc:1377

#18 0x000000000076ab5a in handle_one_connection (arg=0x7fb247aa2070) at /data/src/10.0/sql/sql_connect.cc:1292

#19 0x0000000000acc902 in pfs_spawn_thread (arg=0x7fb2479a2370) at /data/src/10.0/storage/perfschema/pfs.cc:1861

#20 0x00007fb24f84a494 in start_thread (arg=0x7fb24fc17700) at pthread_create.c:333

#21 0x00007fb24dc0393f in clone () from /lib/x86_64-linux-gnu/libc.so.6