Unexpected warning while selecting from information_schema.processlist

MariaDB [test]> select sleep(100);

MariaDB [test]> select id, user, host, progress from information_schema.processlist where info not like '%information%';

+----+---------+-----------+----------+

| id | user    | host      | progress |

+----+---------+-----------+----------+

|  9 | Valerii | localhost |        0 |

+----+---------+-----------+----------+

1 row in set, 1 warning (0.006 sec)

MariaDB [test]> show warnings\G

*************************** 1. row ***************************

  Level: Warning

   Code: 1918

Message: Encountered illegal value '' when converting to DECIMAL

1 row in set (0.000 sec)

MariaDB [test]> select version();

+-----------------+

| version()       |

+-----------------+

| 10.4.25-MariaDB |

+-----------------+

1 row in set (0.002 sec)

MariaDB [test]> select @@sql_mode\G

*************************** 1. row ***************************

@@sql_mode: STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

1 row in set (0.000 sec)