Correct summary reference to extensions container type

Author: alex-kulakov

Orm/Xtensive.Orm/Orm/Configuration/DomainConfiguration.cs

@@ -649,7 +649,7 @@ public TagsLocation TagsLocation
     /// <summary>
     /// Maximam number of filtering values in IN clause which are
     /// to be placed inside a resulted SQL command (as boolean predicate).
-    /// Affects only <see cref="QueryableExtensions.In{T}(T, T[])"/> group of methods with 
+    /// Affects only <see cref="QueryableExtensionsEx.In{T}(T, T[])"/> group of methods with 
     /// <see cref="IncludeAlgorithm.Auto"/>. If collection of parameters has more items
     /// than this parameter allows then temporary table will be used to store values.
     /// Default value is <see cref="WellKnown.DefaultMaxNumberOfConditions"/>