OData contains does not generate the correct sql

In this example the following query gets generated:

DECLARE @TypedProperty_1 VarChar(3) -- String
SET     @TypedProperty_1 = '%2%'
      SELECT
        `$it`.`Id`,
        `$it`.`Name`
      FROM
        `test_db`.`Students` `$it`
      WHERE
        CASE
                WHEN `$it`.`Name` IS NULL THEN NULL
                ELSE `$it`.`Name` LIKE @TypedProperty_1 ESCAPE '~'
        END = 1

Though it should have generated this query (EF Core generated):

DECLARE @TypedProperty_1 VarChar(3) -- String
SET     @TypedProperty_1 = '%2%'
      SELECT
        `$it`.`Id`,
        `$it`.`Name`
      FROM
        `test_db`.`Students` `$it`
      WHERE
(@__TypedProperty_0 LIKE '') OR (LOCATE(@__TypedProperty_0, `a`.`Name`) > 0)

Additionally, when using the EFCoreTools library, it generates this query:

DECLARE @TypedProperty_1 VarChar(3) -- String
SET     @TypedProperty_1 = '%2%'

SELECT
        `$it`.`Id`,
        `$it`.`Name`
FROM
    `test_db`.`Students` `$it`
WHERE
    CASE
        WHEN `$it`.`Name` IS NULL
            THEN NULL
        ELSE NULL
    END = 1

Steps to reproduce

ODataTestProject.zip

1. Run the sql file inside the zip to seed data.
2. Alter the settings.
3. Run the project.
4. Navigate to: https://localhost:5001/api/values?$filter=contains(Name,‘2’)

Environment details

linq2db version: 3.3.0 Database Server: MySql 8.0.21 Database Provider: linq2db.MySql v3.3.0 Operating system: Windows 10 .NET Framework: .NET 5

[sdanyliv]

Well, preparing fix. Generated SQL is:

--  MySql.Official MySql
DECLARE @TypedProperty_1 VarChar(3) -- String
SET     @TypedProperty_1 = '%2%'

SELECT
	`$it`.`Id`,
	`$it`.`Name`
FROM
	`Students` `$it`
WHERE
	`$it`.`Name` LIKE @TypedProperty_1 ESCAPE '~'

[sdanyliv]

Thanks for reporting. Looks like a bug.