I have a legacy database that I am mapping using NHibernate. The objects of concern are an Account and a list of Notification objects. The objects look like: 

public class Notification
{
    public virtual int Id { get; set; }
    public virtual DateTime BatchDate { get; set; }
    /* other properties */

    public virtual Account Account { get; set; }
}

public class Account 
{
    public virtual int Id { get; set; }
    public virtual string AccountNumber { get; set; }
    /* other properties */ 
}

The mapping files look like:

<class name="Account" table="Account" dynamic-update="true">
<id name="Id" column="AccountID">
    <generator class="native" />
</id>
<property name="AccountNumber" length="15" not-null="true" />
    <!-- other properties -->
</class>

<class name="Notification" table="Notification">
    <id name="Id" column="Id">
        <generator class="native" />
    </id>
    <!-- other properties -->
    <many-to-one name="Account" class="Account" property-ref="AccountNumber" lazy="proxy">
        <column name="AcctNum" />
    </many-to-one>

However, when I create a criteria such as 

return session.CreateCriteria(typeof(Notification)).List<Notification>();

I am getting a Select N+1 case where each account is loaded even though the Account is never referenced. Why are all of the accounts getting loaded when the many-to-one is mapped as a lazy proxy?

nhibernate lazy-loading icriteria
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