Failing assertion lex->proc_list.elements == 0 or syntax error on PROCEDURE ANALYSE in UNION

mysqld: /data/src/10.2/sql/sql_parse.cc:7489: bool mysql_new_select(LEX*, bool): Assertion `lex->proc_list.elements == 0' failed.

160912 15:05:21 [ERROR] mysqld got signal 6 ;

...

#6  0x00007fb45cd4c266 in __assert_fail_base (fmt=0x7fb45ce85238 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7fb45ff1eadd "lex->proc_list.elements == 0", file=file@entry=0x7fb45ff1d658 "/data/src/10.2/sql/sql_parse.cc", line=line@entry=7489, function=function@entry=0x7fb45ff1fd00 <mysql_new_select(LEX*, bool)::__PRETTY_FUNCTION__> "bool mysql_new_select(LEX*, bool)") at assert.c:92

#7  0x00007fb45cd4c312 in __GI___assert_fail (assertion=0x7fb45ff1eadd "lex->proc_list.elements == 0", file=0x7fb45ff1d658 "/data/src/10.2/sql/sql_parse.cc", line=7489, function=0x7fb45ff1fd00 <mysql_new_select(LEX*, bool)::__PRETTY_FUNCTION__> "bool mysql_new_select(LEX*, bool)") at assert.c:101

#8  0x00007fb45f5dc347 in mysql_new_select (lex=0x7fb454019a50, move_down=false) at /data/src/10.2/sql/sql_parse.cc:7489

#9  0x00007fb45f7a7bed in add_select_to_union_list (lex=0x7fb454019a50, is_union_distinct=true, is_top_level=true) at /data/src/10.2/sql/sql_yacc.yy:707

#10 0x00007fb45f7d176b in MYSQLparse (thd=0x7fb454016070) at /data/src/10.2/sql/sql_yacc.yy:16092

#11 0x00007fb45f5e15f3 in parse_sql (thd=0x7fb454016070, parser_state=0x7fb46052cdd0, creation_ctx=0x0, do_pfs_digest=true) at /data/src/10.2/sql/sql_parse.cc:9793

#12 0x00007fb45f5dcfd7 in mysql_parse (thd=0x7fb454016070, rawbuf=0x7fb454064088 "( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) ) \nUNION\n( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) )", length=104, parser_state=0x7fb46052cdd0, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7727

#13 0x00007fb45f5cb555 in dispatch_command (command=COM_QUERY, thd=0x7fb454016070, packet=0x7fb454058071 "( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) ) \nUNION\n( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) )", packet_length=104, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1805

#14 0x00007fb45f5c9f86 in do_command (thd=0x7fb454016070) at /data/src/10.2/sql/sql_parse.cc:1365

#15 0x00007fb45f705912 in do_handle_one_connection (connect=0x7fb45c46d410) at /data/src/10.2/sql/sql_connect.cc:1354

#16 0x00007fb45f70569f in handle_one_connection (arg=0x7fb45c46d410) at /data/src/10.2/sql/sql_connect.cc:1260

#17 0x00007fb45fa13ea4 in pfs_spawn_thread (arg=0x7fb45c4519f0) at /data/src/10.2/storage/perfschema/pfs.cc:1862

#18 0x00007fb45ec4e0a4 in start_thread (arg=0x7fb46052e300) at pthread_create.c:309

#19 0x00007fb45ce0687d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

CREATE TABLE t1 (i INT);

--error ER_WRONG_USAGE

( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) ) 

UNION

( SELECT * FROM t1 PROCEDURE ANALYSE( 10, 10 ) );