Escaped Single Quote and Hash cause error in strings

An SQL Query that does not touch ColumnStore tables running on a MariaDB ColumnStore
version "10.2.10-MariaDB-log - Columnstore 1.1.2-1" fails when the same query run against MariaDB version "10.1.26-MariaDB-0+deb9u1 - Debian 9.1" executes successfully when a hash (#) follows an escaped single quote (\').
Below queries do not need any tables to be set up beforehand.
Example Query:

SELECT `test_col`

FROM `test_table`

WHERE test_table.test_col =  '\' #'

Expected Result:

#1146 - Table '<database>.test_table' doesn't exist

Result on "10.2.10-MariaDB-log - Columnstore 1.1.2-1":
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''\'' at line 1

Result on "10.1.26-MariaDB-0+deb9u1 - Debian 9.1"
#1146 - Table '<database>.test_table' doesn't exist

Unfortunately I do not currently have a newer version of MariaDB Columnstore to test against.