The debug build of MariaDB (build with `cmake .. -DCMAKE_INSTALL_PREFIX=$(pwd) -DWITH_ASAN=ON -DCMAKE_BUILD_TYPE=Debug`) triggers assertion failure when executing the following statement. Seems benign with release build.

DROP DATABASE IF EXISTS test123;

CREATE DATABASE IF NOT EXISTS test123;

USE test123;

ALTER SEQUENCE IF EXISTS sequence_name_0 AS MEDIUMINT;

Assertion stack:

#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x0000ffff8d620aac in __GI_abort () at abort.c:79
#2 0x0000ffff8d62d494 in __assert_fail_base (fmt=0xffff8d728908 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0x3a2ee00 <str> "0", file=file@entry=0x3a2e4a0 <str> "/home/mariadb/mariadb-server/sql/protocol.cc", line=line@entry=640,
function=function@entry=0x3a2ece0 <_PRETTY_FUNCTION_._ZN8Protocol13end_statementEv> "void Protocol::end_statement()") at assert.c:94
#3 0x0000ffff8d62d4fc in _GI__assert_fail (assertion=0x3a2ee00 <str> "0", file=0x3a2e4a0 <str> "/home/mariadb/mariadb-server/sql/protocol.cc",
line=640, function=0x3a2ece0 <_PRETTY_FUNCTION_._ZN8Protocol13end_statementEv> "void Protocol::end_statement()") at assert.c:103
#4 0x0000000000a1612c in Protocol::end_statement (this=0xffff5d4a88b8) at /home/mariadb/mariadb-server/sql/protocol.cc:640
#5 0x0000000000e19834 in dispatch_command (command=<optimized out>, thd=0xffff5d4a8288, packet=<optimized out>, packet_length=<optimized out>,
blocking=<optimized out>) at /home/mariadb/mariadb-server/sql/sql_parse.cc:2451
#6 0x0000000000e240d8 in do_command (thd=0xffff5d4a8288, blocking=<optimized out>) at /home/mariadb/mariadb-server/sql/sql_parse.cc:1415
#7 0x0000000001483da0 in do_handle_one_connection (connect=<optimized out>, put_in_cache=true) at /home/mariadb/mariadb-server/sql/sql_connect.cc:1415
#8 0x00000000014837b4 in handle_one_connection (arg=0xffff8843dc48) at /home/mariadb/mariadb-server/sql/sql_connect.cc:1327
#9 0x00000000026476a0 in pfs_spawn_thread (arg=0xffff80609508) at /home/mariadb/mariadb-server/storage/perfschema/pfs.cc:2198
#10 0x0000ffff8d9af624 in start_thread (arg=0x8a0b38 <asan_thread_start(void*)>) at pthread_create.c:477
#11 0x0000ffff8d6d166c in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78