In my model I have navigation property Language:
public class IntegratorDescription : BaseContract
{
[Key, Column(TypeName = \"bigint\"), DataMember]
-IGNORECHANGES
Scaffolds an empty migration ignoring any pending changes detected in the current model. This can be used to create an initial, empty migration to enable Migrations for an existing database. N.B. Doing this assumes that the target database schema is compatible with the current model.
http://coding.abel.nu/2012/03/ef-migrations-command-reference/