Add test for failing OR clause

Add test for failing OR clause

This fails because when the field is being concatenated like
`a`.`first_name`='x' OR`a`.`last_name`='x'

The lack of a space between OR and `a` is fugly but it
is parsed by mysql. However, when the value requires utf8mb4
to be supported to do the comparison it returns '0=1' if the
database does not support utf8mb (or it thinks it doesn't per

0 = 1 OR0 = 1