A ColumnStore warning returned when dropping an non-existing table

Build tested: 1.5.2-1 (community edition b33685)

MariaDB [(none)]> create database d1;
Query OK, 1 row affected (0.001 sec)

MariaDB [(none)]> use d1
Database changed
MariaDB [d1]> show tables;
Empty set (0.001 sec)

MariaDB [d1]> drop table d1;
Query OK, 0 rows affected, 1 warning (0.034 sec)

MariaDB [d1]> show warnings;
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1 row in set (0.000 sec)

MariaDB [d1]> drop table hello;
Query OK, 0 rows affected, 1 warning (0.031 sec)

MariaDB [d1]> show warnings;
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1 row in set (0.000 sec)

Not sure why it gets to ColumnStore for deleting data files since there is no reference to the ColumnStore engine.

This issue did not occur in release 1.4.4.