Failed version is recorded into the DatabaseVersion collection

[safor]

In case of a migration failure, a corresponding version is being recorded into the DatabaseVersion collection. So, next time migrations are being run the failed one is not being executed. Is it a bug or feature?

In an example below the first run will execute the RedMigration and fail, the second run will skip the RedMigration and execute the GreenMigraion.

    public class RedMigration : Migration
    {
        public RedMigration() : base("1.0.0") { }
        public override void Update() {
            throw new System.Exception("Testing migrations rollback");
        }
    }

    public class GreenMigration : Migration
    {
        public GreenMigration() : base("1.0.1") { }
        public override void Update() {
            // empty
        }
    }