/// <summary>
 /// Initializes a new instance of the <see cref="EntityRelationshipModificationProxy"/> class.
 /// </summary>
 /// <param name="key">The key.</param>
 /// <param name="value">The value.</param>
 /// <param name="isAttached">if set to <c>true</c> [is attached].</param>
 internal EntityRelationshipModificationProxy(EntityRelationshipModificationCache.EntityRelationshipModificationCacheKey key, IDictionary <long, IChangeTracker <IMutableIdKey> > value, bool isAttached)
 {
     Key        = key;
     Value      = value;
     IsAttached = isAttached;
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="EntityRelationshipModificationProxy"/> class.
 /// </summary>
 /// <param name="key">The key.</param>
 internal EntityRelationshipModificationProxy(EntityRelationshipModificationCache.EntityRelationshipModificationCacheKey key)
     : this(key, new ConcurrentDictionary <long, IChangeTracker <IMutableIdKey> >( ), false)
 {
 }