Liquibase 3.5.3 runs ALTER USER on update

I upgraded to Liquibase 3.5.3. We use SqlServer. I see this error during update:

Unexpected error running Liquibase: Cannot alter the user ‘david.raskin’, because it does not exist or you do not have permission. [Failed SQL: IF USER_NAME() <> N’dbo’

BEGIN

        DECLARE @sql nvarchar

        SELECT @sql = N’ALTER USER ’ + QUOTENAME(USER_NAME()) + N’ WITH DEFAULT_SCHEMA = [ccf]’

        EXEC sp_executesql @sql

END]

Previous version of Liquibase did not give this error or probably didn’t run this SQL in the beginning.

Is there a way to disable this?

thanks!